Target quench?
#1
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Location: Mississippi
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Target quench?
What should my target quench be?? What I have is an lq4 pistons .010 out the hole, .015 milled 243s. I also have a set of .040 cometic gaskets. This is an n/a motor that will be sprayed every now and then.
Thanks
Thanks
#5
INCREASE YOUR QUENCH!
Thats putting you at 0.030 quench. 0.035 is the rule of thumb.
btw, milling has ZERO effect on quench. It's all about head gasket thickness and out of hole.
Thats putting you at 0.030 quench. 0.035 is the rule of thumb.
btw, milling has ZERO effect on quench. It's all about head gasket thickness and out of hole.
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#10
LS1Tech Premium Sponsor
iTrader: (5)
The minimum quench we recommend is .035". Anything less then that and you are running a risk of some contact issues.
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
#15
11 Second Club
iTrader: (2)
It always scares me when I see .040 cometics on a stock LS1 short block.
If the pistons are .006"-.008" OOTH then the quench is brutally tight/close.
Perhaps as Brian just stated the aluminum block helps this but I recently tore
down an aluminum headed iron block stock car engine that had the pistons
.018" out with a .051" gasket and you could see the marks from the pistons
touching the quench pad of the chamber. This was only a 7000 rpm...maybe
525 horsepower application. Luckily it didn't bomb or even pinch the lands
but I am ordering .056" Cometics for it.
#16
Not to hijack this thread but is 0.051 quench too much? I have a zero decked ls7, I'd like to run 0.041 head gaskets but I'm afraid that will raise my DCR too high since it has a torquer cam.