louis tool/swapping to 1.6:1 ratio rockers
Grumpy? can i install a set of roller rockers,1.6 ratio in my l79 engine with having my pushrod holes elongated to accept the 1.6 ratio? https://www.hotrod.com/articles/roller-rocker-ratio-test/...
garage.grumpysperformance.com
checking piston to valve clearances
this is an old post I got asked to repost, naturally the first step is to install and correctly degree in your cam, http://garage.grumpysperformance.com/index.php?threads/measuring-piston-dome-volume.17255/...
garage.grumpysperformance.com
Does Different Pushrod Length Change Valve To Piston Clearance
Guys, I went from an incorrect length (8.950) to a correct length (9.034) pushrod. Does that change valve to piston clearance? I compensated for the shorter pushrods with the lash adjuster screw. In fact I "compensated right out of oil circulation" with T&D Rockers. Now that I have the correct...
garage.grumpysperformance.com
valve train clearances and problems
you might want to read thru these links and sub links it will help you avoid costly mistakes http://www.summitracing.com/parts/pro-66830/overview/ https://www.harborfreight.com/multipositional-magnetic-base-with-fine-adjustment-5645.html...
garage.grumpysperformance.com
sellecting valve springs, and setting up the valve train
How do you determine the spring pressure needed to keep the valves under control for a given lift, duration, and max rpm. It might take you several hours to read thru all the links and sub links but its time very well spent as it could save your engine from destruction and save you thousands of...
garage.grumpysperformance.com
rocker/push rod wear issues
Put vortec heads on my L98 and ordered 1417 1.52 Roller Rockers and 7808 Pushrods from CompCams. Installed screw in rocker studs with guide tool before assembly of the engine. Checked valve geometry and the roller left a mark right on the center of the valve like its supposed to. Oil pressure...
garage.grumpysperformance.com
How Does Rocker Ratio Affect Lca?
How does Rocker Raito affect LCA? To narrow it down we have a 30 over 327 461X heads with the 1.94 valve & flat top piston w/ two valve depressions. The cam has a 112 LCA - Maybe a little wide...
garage.grumpysperformance.com
do yourself a HUGE favor
and
read ALL these links and sub links carefully
yeah it may take you a week, or more ,
but its sure to significantly reduce your chance of screwing something up,
or wasting a good deal of cash, or damaging your engine.
yes you can generally swap to the 1.6:1 ratio vs the factory 1.5:1 rockers,
if you just go with the roller tip versions like these do little and don't reduce friction/ losses much.
its probably not going to gain you much,
going to full roller rockers is generally a 15-20 hp gain
but be aware,
the resulting changes in rocker geometry and clearances may cause significant issues
I learned long ago to wait and buy what I really want rather that settle for what I can more easily afford.
http://garage.grumpysperformance.com/index.php?threads/magnets.120/#post-76609
http://garage.grumpysperformance.com/index.php?threads/oil-system-mods-that-help.2187/#post-54398
http://garage.grumpysperformance.co...rect-custom-length-pushrods.14241/#post-72346
https://www.chevyhardcore.com/tech-...zing-your-cams-potential-with-better-rockers/
http://garage.grumpysperformance.co...s-and-improved-oil-flow-mods.3834/#post-52402
http://garage.grumpysperformance.co...ing-down-a-valve-train-noise.6237/#post-31799
http://garage.grumpysperformance.co...ring-installation-questions.12833/#post-66380
http://garage.grumpysperformance.co...er-rockers-and-stud-girdles.12208/#post-59297
http://garage.grumpysperformance.co...ch-is-best-steel-or-aluminum.3124/#post-12385
http://garage.grumpysperformance.co...train-clearances-and-problems.528/#post-44534
http://garage.grumpysperformance.co...fit-under-stock-valve-covers.6641/#post-21035
http://garage.grumpysperformance.co...per-valve-spring-seats-shims.1005/#post-15534
http://garage.grumpysperformance.com/index.php?threads/valve-train-shrapnel-screens.1458/#post-22845
yeah! Im aware your very likely to ignore the advice..
most readers will...
. but its a reference, I'm posting here, to help later
you , or anyone else doing similar
(SIMPLE MODS, TO THE VALVE TRAIN) can use.
if YOU DO need to find out what went wrong ,
because there's frequently little things you fail to think through as a new engine builder.
and why its costing you considerable problems, if you don't read through the links
and yes I learned many the hard/expensive way, before I learned to do research
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