Chevy 350 solid lifter valve lash specs

The lash for Ford Y blocks I mentioned earlier was . ) This is a crucial setting, as it will determine the performance and lifespan of the valvetrain and will keep valve duration and lift on key with the cam’s specs. Aug 22, 2010 · That brings me to my last point that if you are setting lash HOT and not all valves/cylinders are at the same temp your lash will change from cylinder to cylinder and if you lash hotter or colder from week to week your valve lash can change from temperature. Really though you see these vary from in the high teens range, to in the mid thirty thousandths range sometimes. that plunger can actually pump up upon losing control of the valve/lifter. Jul 7, 2020 · Not sure I understand your question. -1. 050". Mar 16, 2019 · In a mild to slightly modified engine, hydraulic-valve lifters offers several advantages over a solid lifter. "30-30" SOLID LIFTER CAM VALVE ADJUSTMENT. This way you know your getting the Jul 18, 2015 · C3 Tech/Performance - 1970 LT1 350/370 HP Corvette cold valve lash adjustment settings for solid lifters - Trying to find settings for cold valve lash adjustment on a 1970 Corvette LT1 350/370 HP solid lifter engine. (you don't need to change the lash setting, just check what it is while hot) and check it the next day (24 hours) when dead "stone cold". Confirmed solid, not hydraulic. This action taken by Tom Mobley. 030") but original GM spec was . If you preloaded to the point that you put the plunger all the way down in the lifter, and then floated the valve. It is commonly known as valve clearance. 020 inch hot, actually only opens the valve a total of 0. 26 int . there is one in there for hydraulics on the big block, but all the small blocks listed in there are for solid lifters. Chevrolet Solid Lifters - Set of 16. 540 inch. Compression can not be started until the valve is almost closed. These were the clearances determined by engineering based on design and intended usage. Engine respond to the actual movement of the valves. With iron block and aluminum heads, subtract . For oneif you float the valves, the engine recovers faster. If you close the valves on any given cylinder and check for pre-load vs lash you should be able to identify solid vs hydraulic unless they are grossly loose mis-adjusted hydraulics. Then rotate engine. If you set them to zero lash then tighten them, you're effectively opening the valves. 010 inch, and the valve then opens . 28 exh hot. Solid-Outstanding power & modern tight lash with the exhaust note of the GM 30-30 cam. Wait a minute or two for that hydraulic lifter' push rod seat to return to the "up" position. 008"x 1. 11:1. If you do a search on dynamoc compression you will find a ton of info. 014- to 0. 013" Hot, and is probably why I have damaged several Morel Ultra Pro bushed lifters in a few thousand miles. 3 mm)/0. The . 050" lifter rise duration would be once the valve lash is accounted for. 018") "So at 18 degrees Oct 15, 2010 · Once you've determined that the valve you are checking is fully closed, actually checking the lash is the easy part. At this point, adjust the intake valve to ZERO LASH with no pre-load at the lifter, then tighten 1/2 more turn. At this point make the correct adjustment to the intake valve. Rocker ratio is not reliable Sep 21, 2005 · Grossvalve lift measures a lofty 0. Solids each have thier own specs for setting lash. 7. Feb 3, 2018 · The term 30-30 is a reference to the solid-lifter cam’s valve lash settings assigned by Chevrolet. The lash specs are designed to match the cam and the rocker arm ratio. The valves are adjusted 3/4 to 1 turn down and the ignition timing is adjusted to factory specs and that would be 10 degrees BTDC for a 1967 327 L-79. Apr 12, 2006 · A 454 with a second generation grind L-88 solid lifter cam 1970's technology, stock no work/porting 290 casting oval port with small valve size, 11. 050" of lifter rise, but due to the valve lash, the cam is roughly equivalent to at hydraulic cam with a duration of 240 degrees at . You'll find that sometimes when you tighten the set screw or the bolts on the stud girdle, that the lash Are you using solid lifters? I'm not an expert but from my understanding, if you have solid lifters, you need to have a few thou of lash cold so that there's minimal lash at temp, you'll have to research for the specs. Dec 4, 2022 · Zero lash with solid lifters will plow the oil off of every single friction surface, resulting in accelerated wear, and premature failure. 018 Intake lash, . 0:1 static compression ratio and big Sep 9, 2009 · Find TDC #1 cylinder, line up the timing mark on the balancer, adjust the valves per your manual, then turn the engine one revolution and line up the timing mark again and adjust the remaining valves). Valve lash measurement area differs from vehicle to vehicle based on engine design. / 254 exh. 020 on the intake, and . Mar 10, 2015 · Now, tighten the lash to . 012, where most are . I was able to get ahold of Doug Herbert and he gave me the specs for cam. GM Small Block Valve Adjustment Procedure. Jun 3, 2010 · Can anyone give me the proper set up sequences and valve lash adjustment settings for Intake/Exhaust settings for my mechanical lifter LT-1? I've read/heard, after run up to normal temps, . 680 lift (. . With iron block and iron heads, add . When I bought my '56 with a 350 ('69 truck engine), it clattered quite a bit. Jan 21, 2019 · For example, if the cam lobe is 0. Thanks for the help. 8 mm)/0. Put the 30-30 in a 350 and it would work the same. Camshaft & solid lifter set specs: Basic operating RPM range: 2,800-6,800 RPM. You can guess and hope to get close. These are all street solids. Rotate the engine again until the intake valve has fully opened. #14 · Jul 1, 2016. Some of these are: no need for frequent valve adjustments, quieter operation since there is no lash, increased valve and camshaft life, smoother engine operation, and the continuous ability to compensate for expansion and contraction of the valvetrain parts due to temperature change. 03 in (0. tommer2, that's not degrees in the lash spec, it's thousandths of an inch. The solid lifter cam lobe has a gentile clearance ramp area at the base of the lobe and a much faster lifting ramp for the portion where the valve is off its seat. 030/. 5:1 ratio difference at the lash point and rounded-down to the next-nearest thousandth or two to Mar 27, 2011 · As the metal in the valve train expands the lifter, pushrod, and valve stem elongate - taking up clearance in the system. The rule of thumb that i was taught for a stone cold engin is whatever the specs call for +. 37:1-vs. 010" is . Feb 22, 2011 · Great responses, guys! Thanks! My p/n info comes from the book, 302, The Definitive 1967-1968 Camaro Z/28 Fact Book by Jerry MacNeish. 020" and 0. Valves. When the push rod starts to turn, stop loosening the nut. May 13, 2004 · When you start setting them you will notice that you will alternate between an intake valve and an exhaust valve each 1/4 rotation of the crank. 030 for Exhaust. Setting valve and roller lash on a Chevy v8 350 Exhaust Opening, Intake Closing (EO/IC) Method (By Gary Gevaert – July 2013) Page 2 9. Now you can adjust the exhaust valve to ZERO LASH Apr 27, 2011 · Use a feeler gauge, set to the correct valve lash, and place it between the tip of the valve stem and rocker arm. A typical LS engine with a performance cam will need a pushrod between 7. Repeat 15 times. If setting cold, add a 'couple-thou' (@. Tighten the adjusting nut until the slack is taken out of the rocker arm and pushrod. Solid Lifter Cams: Consult cam spec card or cam manufacturer for correct lash specifications. 7=. If you look in the small box that says 'valve tappet clearance' that is for flat tappet cams. Talk to the experts. 400-inch. Let them cool overnight and see what they are cold on that cylinder, and then lash the rest to that cold spec. And/or suggestions on how to adjust. Jan 26, 2015 · “These work great with either a short-travel hydraulic roller tappet or a solid lifter at the tight limit of possible lash setting for aluminum blocks and heads, around 0. adjust 4int when 7int fully open. (eighteen thousandths) (0. Published: Aug 19, 2011. Badbird Discussion starter. 002". 016". Working on one cylinder at a time, rotate the engine in the normal rotation until you observe the exhaust pushrod start to rise or the exhaust rocker start to depress the valve. 022 int/. As listed in that publication, the 140 cam carries th GM p/n 3727140, solid lifter cam, offered for off-street use only, . 350 X 1. (701)893-5010. Jan 11, 2005 · On hydraulic lifter cams, rotate the engine in the normal direction of rotation until the exhaust valve begins to open. engine will run, and one with the lifter unloaded. 024"In/. Nov 9, 2020 · This is the procedure on how to set valve lash on a Chevy 350 engine. 6:1, the valve lift would be 0. To precisely control the valve events at higher engine speeds, all the other 409 high-performance engines carried a solid lifter camshaft. As the intake valve opens, then begins to close, as the intake valve is almost closed, set lash on the exhaust valve. Mar 12, 2012 · You cannot lash a solid lifter while its running. Jul 16, 2020 · Comp Cams Extreme solid flat tappet cams #12-676-4 and #12-677-4 You can google these for specs. 018-inch for intake and exhaust. Also HPBooks call's it a 306/306, so go figure. Sep 1, 2017 · Published: Sep 1, 2017. Duration (@ 050 inch lift): 254 int. There's not a method I know of to find out for sure without the cam This is the Zero Lash Position. 018-. adjust 3exh when 2exh fully open. Pete B : Yes that is the correct timing - 36 degrees at 2000 rpm, with vacuum line off the dist. 050. Turn nut down ¼ additional turn and pause 10 seconds until engine runs smooth-ly. Mar 22, 2022 · The cold lash setting will be the clearance when the engine first starts and then will increase with the wider clearance once the engine warms up. All COMP Cams Camshafts are manufactured to the strictest tolerances. That is presuming that your engine lives long enough to die that soon. Thanks. By John Hinckley and Duke Williams. The original Chevy 265-ci small-block began life actuating diminutive 1. 020 Exhaust lash) Crower 1. Use the fireing order method,,start with #1 tdc compression, then roll the engine 90 degrees and check the next cyl in the firing order,,then another 90 degrees,, and so on. For 1961, the 409’s cam intake and exhaust lift increased to . Hydraulic flat tappet lifters also offer increased longevity over solid lifters. All the 348s carried the hydraulic cam and the 340-hp 409s from 1963-1965 also carried the hydraulic cam. that will help you pick some lash specs. This is all calculated assuming 12 & 20 valve settings and a real 1. Call 800. 7 stainless roller rockers Titanium retainers Super 7 keepers Zero deck block 9:8. May 26, 2023 · Here we are setting valve lash on solid lifters on a roller cam on a 1970 small block chevy 350 LT-1#musclecar #engine #shoplife May 9, 2022 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The adjustment procedure is the same for both flat tappet and roller solid lifters. lifters. 030" of valve lash. Dec 17, 2008 · Cast iron takes time to fully warm up. Aug 25, 2011 · Do one valve at a time one cylinder at a time weather you are using a hydraulic or solid lifter cam. 0 comp, 2 1/8 race header, old torker intake, 850 carb, stock single point distributor guessing on a timing curve stock GM coil, plugs, $ 9. Here is the reasoning behind the revised lash spec. Simply use a feeler gauge and slide the tab of the correct thickness between Jun 28, 2016 · 1024 posts · Joined 2014. (Valve lash is the clearance between the rocker arm and the tip of the valvestem. Since the valve cannot move until all the running clearance (valve lash) has been taken up, the amount of valve lash you use affects the engine’s performance. Chevy Mechanic: Sam C. 012". 507" lift Int, . By Engine Builder. 012 intake and . Available in three versions: standard, micropolished, and micropolished with center oiling. 350 inch and the rocker arm ratio is 1. Nov 13, 2007 · 3. Valve lifters play a key role in the valvetrain of pushrod engines. adjust 6exh when 1exh fully open. 002") to the "HOT" setting and recheck once the engine has reached operating temps. 520" gross lift and lash at . 7 rocker =) . Just my $. Material and the design makes the lifters lightweight, yet exhibit superior strength, and a patented oil metering system limits the amount of oil that Apr 15, 2024 · The valve lash is the empty space between the engine’s valve train parts. For example, a cam with a listed 0. Duration is 268deg for both at . CL12-673-4 - Cam and Lifter Kit, CS Nostalgia 30-30+S. 1/2 turn is recommmnded for low perf and stock rebuilds. Ron. Jun 25, 2020 · This is zero lash. Corey banned permanently on 3-6-20 for continued abuse and generally being a time-wasting PITA. Adjust the exhaust valve with intake valve almost all the way down or almost all the way open. Feb 1, 2007 · To adjust valve lash, be it with a hydraulic or mechanical cam, you need to have the lifter on the heel or base circle of the camshaft lobe. Nov 14, 2019 · With solid lifters, valve lash will need to be set and adjusted from time to time. Here is why lots of guys go to looser lash (like 1/4 turn) on a performance build. 72- and 1. Camshaft style: mechanical flat tappet. If all looks good, loosen the lock nut slightly, while trying to twist the pushrod, between your fingers. 0122, 7am-10pm CST, everyday. circle on ANY OEM Chevrolet cam for adjustment, and the factory-recommended clearance on other OEM Chevrolet small-block solid-lifter cams should be factored as well by the 1. Apr 26, 2013 · Pete B : . The distance between these two points will represent the amount of lifter pre-load. 012 in (0. 012 inch. 030 were the specs for the factory-installed street cam. adjust 1int when 6int fully open. 017" hot lash or what ever its at. Tightening the lash also has a small affect on duration, as it increases slightly as the lash is tightened. What I usually do with a new cam and lifters is to set the valves cold making absolutely sure of what they are set at (on the high side of the lash). 8 cyl. They go all the way back to the earliest days of the internal combustion engine. Again, if yours is not between 0. Setting Valve Lash On Chevrolet. (Commonly . 012-inch and 0. i. 560 inch, if the engine used a hydraulic lifter, which has no lash. 520"/. Determine the length of the pushrod and then add the amount of preload required. GM called it a 307/298 and a 316/302 cam, (Chevy Power books 6th and 5th editions). Race it, break it, fix it and repeat. Major camshaft manufacturers recommend setting valves cold, to avoid erroneous adjustments on lifters that may be "pumped up" If you are setting valves on a fresh engine that has not been run, everything should be well lubricated before you begin. 490 inch. Use a feeler gauge, set to the correct valve lash, and place it between the tip of the valve stem and rocker arm. Oct 6, 2011 · Seth . Check the lash on other cylinders and Apr 21, 2007 · This engine has solid lifters. 254@050 - . While the 30-30 cam does use recommended lash settings upward of . Then there was the 30-30 camguess what the lash was. 1. 020-inch lash, then the valve lift would be 0. 030-inch for both intake and exhaust, the Duntov camshaft uses a much tighter recommended lash of 0. 75 rocker ration. With 4. Valves can be set on a hot or cold engine. 022 or so I think. 1955-1998. After running for a couple of days, the hydro-lifters filled with oil and quieted down. aaggie, Jul 30, 2010. 4. When you get 'er good and hot, shut the motor off and remove 1 valve cover and quicky check 1 valve. 1 comp. You have to turn the engine over by hand to get the cam on the base circle and then adjust the nut to get a very slight drag on the feeler gauge of your choice. 008" when engine comes up to temp. First off valve lash should for the most part be checked hot and running ,or at the very least with the engine at operating temp . 010"x1. Then, use a feeler gauge to measure the gap between the rocker arm and the valve stem. Jul 4, 2015 · Those duration and lift specs reflect what the effective net . A far better measurement is 254 degrees at . 030 in hot intake/exhaust valve-lash and Zora Arkus-Duntov (the first Duntov cam was the 0. :noway: The proper way to lash a cam is the EO/IC method. Jul 25, 2017 · A lash for this grind should be (. #2. 5:1 Jahns pistons and a set of Hooker headers. And yes, it was gutless below 3000RPM. OK, I contacted the cam maker (melling) and received a quick response!. 5 Exhaust Problem: Noisy Valves (Clacking) Here is the procedure I've been using: INTAKE ADJUSTMENT: I Hand turn the engine in it's normal direction of rotation while watching the exhaust valve on that particular cylinder. Mar 2, 2018 · With the intake valve on the base circle, install the checking pushrod and lengthen it until all the clearance is removed from the system. To get there, use the exhaust opening and intake Nov 15, 2013 · Adjusting one cylinder at a time , watch the exhaust valve on each cylinder to just open and then adjust the intake valve. 99 at 114. I didn't mention separation, only intake centerline. 026"Ex. This is because less clearance means that the valve opens earlier and closes later as the lifter rides on the cam lobe. Pete B : Base timing will be around 8 degrees BTDC at idle, depends on the condition of the engine. 5:1. 50-inch intake and exhaust valves. (. Adjusting the valves from zero lash , 1/8 turn for short travel lifters and 1/4 to 3/4 for conventional hyd. Its solid-lifter cam, known as the "30-30 Duntov" cam named after its 0. U pick 'em. 050 reads as if Oct 26, 2002 · Small Block Chevy Comp Cam (Solid Lift) 294S Roller Rockers 1. 010" and the lash specified at the valve for that . 024 exhaust. To use this method, pull the valve cover so that you can see the rockers and valve stems and turn the engine May 13, 2009 · My UD 272/282 run at . Again can play with rocker ratio for effect. Apr 24, 2015 · Doug Herbert Billet solid roller cam (CB6K), int . With the Jul 24, 2020 · Re: Valve lash help on 454 with unknown cam and specs. lots of variables there. The easiest way to set hyd valve lash is by using the EOIC method. Sep 6, 2011 · The traditional method of adjusting valves one or more cylinders at a time with each cylinder at TDC is fine for hydraulics and for most solid-lifter cams, but NOT for the factory "30-30" solid-lifter cam used in '64-'65 L-76 365 HP and L-84 375 HP (FI) Corvette engines (and in '67-'69 Camaro 302/290 Z/28 engines); this cam has VERY long Oct 15, 2023 · To adjust lifters on a chevy 350, start by removing the valve cover and rotating the engine until the lifter is on the base circle of the camshaft. Snug the jam nut and check again. 5:1 ratio difference at the lash point and rounded-down to the next-nearest thousandth or two to ensure that the valves are picked up and seated at ramp velocity. The intake valve does not close until about 82 BTDC. Guy I got it from knew less than nothing about the car, it barely ran so I started trying to tune it up, changed carb and distributor, found a broken valvespring and changed that, no amount of adjusting could get it to run well. Pete B : you were close. 025") Changing the valve lash changes what is happening at the valve, where it matters. Sep 29, 2009 · Hydraulic lifters would be set to zero lash and some pre-load, usually 1/2 turn on aftermarket cams and 1 full turn on old factory cams. Dec 20, 2014 · Lash is adjusted with the cam on the base circle. 018 in (0. . In my opinion, this procedure should only be done if the engine has a stock cam. Rog, Published specs vary a little depending on the source. 022 on the exhaust. 10. Re: Solid lifter valve lash adjustment????? 07-08-04 09:38 AM - Post# 476416 In response to loudpedal I agree with loudpetal, push harder to see if they give. With both aluminum block and heads, subtract . 00]. 025 cold, and since its an iron block and heads, that shouldnt change much, maybe just tighten up slightly as it heats up. As has been mentioned, your exhaust valves will be hung open, and burned well before that. Rotate the engine in the normal direction of rotation (clockwise looking from the front of the engine) until the exhaust lifter on the cylinder that you are adjusting just begins to move up. 6:1 rocker ratio in our test engine, the solid's duration at . 026" on both intake and exhaust. Loosen the rocker arm adjusting nut until you can clearly move the pushrod up and down. Hydraulic lifters compensate for valve train expansion tolerances, allowing the valve train to function with zero clearance and quieter operation. Feb 20, 2009 · Yes, break the cam in this way, then after the cam break-in set them on one cylinder hot to the correct lash. A cold engine is a lot more comfortable to work on. Otherwise I would start at 4 degrees or 104ICL. If that cam is used on an all-aluminum engine, this comes very close Apr 22, 2006 · Apr 22, 2006. The alloys Dec 16, 2009 · For hydraulic, you are right - tighten to 0 clearance as indicated by lifting the rocker up and down at the valve, until movement stops, then go another 1/4 to 1/2 turn. The earliest engines did not have pushrods or rocker arms. Repeat additional ¼ turns, pausing 10 seconds each time until nut has been turned down the number of turns listed in the Valve Specifications Chart from the Zero Lash Position. 018 exhaust, I believe. Once again, the most important part is to remember to adjust just one valve on one cylinder at a time – starting with the first cylinder in the firing order and working your way through to the last cylinder. 979. The lifters (also called “tappets” because of Dec 22, 2010 · from DETROIT. Wow, you're in a jam. Bring the engine up to #1 firing (both #1 valves closed and the timing mark aligned with zero on the timing tab) and adjust as follows: exhaust valves 1,3,4,8 and intake valves 1,2,5,7 bring engine Jan 26, 2024 · Once the lifters are positioned properly, try to twist the rocker arm from side to side, to check for play. 080" your application requires either shorter or longer pushrods. IIRC, the lash settings given are correct - or close enough. This procedure is similar to most Chevy small block engines and could be used for gener Jul 1, 2010 · When the exhaust valve just begins to open on the first cylinder in the firing order, adjust the intake valve by loosening the adjusting nut slightly while spinning the pushrod until you feel lash in the rocker arm. 544/0. 245@050 - . Pete B : May 21, 2022 · In this video, Ryan shows you how to install push rods and rocker arms and how to set valve lash on a Chevy 350. Dec 13, 2011 · Also, the stud girdle needs to be on when doing the adjustment. adjust 8int when 5int fully open. EOIC stands for Exhaust Opening, Intake Closing when working with the intake and exhaust valves in a single combustion chamber. A plunger inside the lifter is pressurized by oil to self adjust and maintain zero lash. The chevy 097 cam was . For instance, on overhead camshaft engines, the measurement is taken between the camshaft follower and the camshaft or between the tappet and the Jul 28, 2020 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Mar 31, 2001 · The static compression of a stock 302 is approx. If you are setting the lash on a mechanical lifter camshaft, use the appropriate feeler gauge between the valve tip and the rocker arm and adjust the lash until there is a reasonable tug or pull on the feeler gauge. Jul 16, 2009 · B. Chevrolet 262-400 c. In fact, with the 1. It made the most beautiful music 3500 to 7800 RPM. 6 intakes / 1. Aug 30, 2007 · Cam was new and was run for less than 500 miles and broken in perfect - no scoring. No need to even look at the TDC marks on the balancer because it doesn't matter. May 26, 2005 · That's pretty good for trying to set lash with the motor running, I've never even attempted that with solid lifters. Specifically designed to capture the essence of the original 1960s muscle car experience Combine Jul 30, 2010 · I built it with the 30-30 cam, 350 HP 327 intake and carb, 11. Cross reference: GM #3849346. Jul 1, 2010 · Solid Lifter Camshafts. 150- and 1. 020-inch on a hot engine. should be listed separtately for 71, 72 corvette LT-1 engines. LUNATI/HOLLEY 70992-16 Features: Lunati Solid/Mechanical Lifters are designed to meter the exact amount of oil for optimum performance while maintaining the precise lash needed to allow the camshaft to perform at its best. Aug 21, 2006 · This progressive procedure will ensure that you are on the base circle on ANY OEM Chevrolet cam for adjustment, and the factory-recommended clearance on other OEM Chevrolet small-block solid-lifter cams should be factored as well by the 1. To set preload, merely tighten the adjuster nut another half-turn after zero lash. At this point adjust the intake valve on that cylinder to ‘0’ lash with no pre-load. 668 lift, Exh. 019" for both intake and exhaust. I'd probably go with the S66/S598 on a 108 separation advanced two degrees if you are stuck on 58 degrees. 017") My suggestion on playing it safe is taking Jan 21, 2002 · You can take the "hot" setting given to you in the catalog or cam specification card and alter it by the following amount to get a "cold" lash setting. 0002 thousanths extra with a nice drag on the feeler gauge. ” “In many cases, it’s acceptable to use mechanical lifters on a hydraulic camshaft if relatively tight valve lash figures are used,” adds Knight. Method #1: For a small block Chevy (or any engine with a firing order of 18436572) you can set the valves by turning the engine over just two times. Rigorously tested and checked for quality. Nov 1, 2002 · Changing the valve-lash clearance effectively alters the cam's profile. The lobe separation is ground at 112 degrees Jul 31, 2005 · Here it is. 40MPH like clockwork. Set all valves to . Check 1 valve say at . #7 · Jul 17, 2009. 440 inch. 012-inch hot. Like. 500-inch valve lift lashed at 0. Adjust until you arrive at the proper setting and lock the adjuster in place. They were a “flathead” design with the valves in the block. Some of the higher HP BB's recommended Sep 10, 2011 · Need valve adj specs for 396/375h eng w/solid lifters hot & cold if possible. 3176 posts · Joined 2005. also, check your current lash on all the valves and write them down for each valve,,,,check them both HOT and COLD. Crane doesn't list advertised duration even though they are licensed to re-pop it and WBR call's it a 336/316. Must use correct springs Must use a motor oil with zinc and a hair of moly in it for best cam- lifter life. Mar 1, 2010 · L46 350-HP 350The starting point for the L46 four our test was the '70 LT-1 350 we built for September's story. Finally, adjust the lifter by loosening or tightening the adjusting nut until the correct gap is achieved. Our Solid Lifters are manufactured in the USA from the high-quality hardenable iron alloys to withstand design stresses and normal engine contamination. If it's a cam that has a looser lash setting and you over tighten it, it's gonna cause problems. 5 mm) 1957 grind known as the '097, which referred to the last three digits of the casting number) the "Father of the Corvette", was also Sep 30, 2003 · They give the specs on the cam. Dec 1, 2003 · With a solid, the lash will take up some of the lifter's motion before there is any valve motion. In the evolution of the small-block, now displacing as much as 454 inches out of a standard deck height block, these big-bore small-blocks can now accommodate up to impressive 2. Where this gets interesting is with tight-lash camshafts requesting a hot lash clearance of 0. 00 ing/wire, B & M 10" 3800 flash converter, turbo-400, 4. 242/242, 114/108, . 625-inch valve sizes. Re: solid lifter valve adjustment 08-12-06 02:24 AM - Post# 983218 In response to greg_moreira Unfortunately I know very little about the motor. This guy doesn't seem to be able to get the idea that nobody has been hired to follow him around cleaning his messes. Mine is a tight lash cam . 539 inch on the intake and exhaustlobes, respectively, while the valve lash is kept to a tight 0. 024 for Intake and . Basically as the exhaust valve begins to open, set lash on intake side. May 28, 2004 · The S598 is a 272/238/. Like the 327, the two 350 motors shared the 11. He rebuilt this small block Chevy 350 which Aug 18, 2011 · Adjust one valve at a time. After the intake valve has been adjusted, continue to rotate the engine, watching that same intake valve. As the exhaust valve is starting to open adjust the intake, as the intake is closing, adjust the exhaust. Should be . The cam has now been reground with a clearance ramp of . The dynamic compression is approx. 519" lift exh. However, if it were a mechanical design with 0. 480 & if you put it at 102 it should close the valve real close to 58 degrees. Throttle's Performance. 6 = 0. All these cams will outperform the OEM 097 cam in your lil 325 cid sbc. Feb 12, 2013 · The spec duration (approximately 346 degrees) is very long due to the very long ramps, but the valves don't open then because of the . 006"-. 02 worth. Lifters are BRAND NEW [$121. specs. Aug 19, 2011 · Compensating for a Cold Engine When Adjusting Mechanical Lifter Valve Lash. But does not state what that valve lash is. 88 gears and close ratio Muncie it would run 11. Sam. 006". Jul 12, 2003 · The revised cold lash spec is . The traditional method of adjusting valves one or more cylinders at a time with each cylinder at TDC is fine for hydraulics and for most solid-lifter cams, but NOT for the factory "30-30" solid-lifter cam used in '64-'65 L-76 327/365 Shop 350 Chevy Small Block V8, Valve Lifters and get Free Shipping on orders over $149 at Speedway Motors. Just loosen the bolt, or bolts, that tighten the jam nut, loosen the set screw in the jam nut, and set the clearance with the feeler gauge. My lash usually closes up ~. Make sure the lock nuts still grip tight, as it should take maybe 5-10 ft lb to make them turn. 350- and 7. Solid lifter or mechanical camshaft valve lashing is set very similar to hydraulic lifter camshafts. fu aa nv be be fg yb fl gy or