Compression ratio after milling heads.
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From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
Compression ratio after milling heads.
My heads are at 60cc now. I am running the thin copper FelPro head gasket.
Any idea on my compression ratio?
This is on a stock 1988 L98 short block.
Any idea on my compression ratio?
This is on a stock 1988 L98 short block.
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Please define "thin" What is the compressed thickness of the copper head "templates"? I hesitate to use the term "gasket", since it probably won't be one of those for very long.
With exact head gasket compressed thickness, deck height, piston dome/dish volume, bore, gasket bore, and chamber volume, I can give you a nearly exact static compression ratio.
Or, you can find it for yourself:
Engine Calculations.xls If you can use an Excel spreadsheet, it's fairly close.
With exact head gasket compressed thickness, deck height, piston dome/dish volume, bore, gasket bore, and chamber volume, I can give you a nearly exact static compression ratio.
Or, you can find it for yourself:
Engine Calculations.xls If you can use an Excel spreadsheet, it's fairly close.
Thread Starter
Supreme Member
iTrader: (15)
Joined: Oct 2003
Posts: 3,449
Likes: 5
From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
FelPro preflattened copper head gasket.
.039" compresed thickness.
Stock short block. Stock pistons, untouched.
.039" compresed thickness.
Stock short block. Stock pistons, untouched.
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blown, calculate, calculating, compressioin, compression, comrpession, gasket, head, heads, l98, milled, milling, ratio
