Compression ?

[ftn96]

I have an all stock 5.7L 350 (90 model).
Does anyone know what the stock sompression is on these things?

#2 I have read somewhere that this motor has 60cc heads, is this correct? Sounds way too small for a stock app.

. How much would the compression increase with just going 30 over on a rebuild?

Will work for beer, parts and tools.
90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>

 

[Blazer1970]

I think those motors have 64cc heads, and should be about 9.5:1 compression. An .030" overbore will not change the compression ratio significantly.

Tim

70 Blazer CST 4X4 350 SM465 NP205
87 Burb 4X4 350
01 GMC 2500HD 4X4 Duramax/Allison