oldpro

have a lt1 short blk I know I have to change the front of the motor to a standard old school small blk ., my ? is I want to put the heads and intake off my 89. what will the compression be . what is the difference in cc s between the 2

Churchkey

My stock 89 113 heads were 58cc.

LTZ\x IDK.

89onlyZ51

Iirc, aluminum l-98 is 58, and lt-1 is 55.

C409

..... Heads from an L98 will not work on an LT1 block .....

aboatguy

and neither will small block chevy timing cover, water pump etc...
"....to quote OP change front of the motor to a standard old school small blk"

Many sources that have measured aluminum LT1 heads state 54cc

Mike

oldpro

a fella named trevor gave greg who works for zr51 performance gave greg the parts to convert it . where are the block numbers located I will ck them and get back with everyone

oldpro

this is my first standard vet my other is a 90 zr1 so I am a rookie on standard small blk stuff. I have a message into greg to find out more also .

aboatguy

This old Hotrod article may help explain some of the differences.

If you are trying to build a small block chevy using a small block chevy block will be cheaper than converting an LT1 block to fit SBC components....
http://www.hotrod.com/articles/ccrp-...-block-engine/