5.0 LB9 TPI to 5.7 TPI swap

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Jan 14, 2001 | 06:41 AM

88transam5.0

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Joined: Nov 2000

Posts: 84

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From: L.C. TX USA

5.0 LB9 TPI to 5.7 TPI swap

I have the LB9 5.0 tpi and I'm ready to replace engine. Which 5.7 is compatiable with the tpi setup I already have, I'm looking to buy one of the GM engines but I've see a couple of different 5.7L being listed. I understand the L98 were discontinued, so which one will work for me. thanks

Jan 15, 2001 | 01:11 AM

vortecfcar

Senior Member

Joined: Sep 2000

Posts: 840

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From: Crystal Lake Il

Car: '98 Z

Engine: LS1/6

Transmission: 4l60E

zz4 or anything else listed as 87 and newer, the head to intake bolt pattern is what you have to look at.

Jan 17, 2001 | 11:16 AM

90Iroc

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Joined: Oct 1999

Posts: 271

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From: Greenwood, IN USA

Car: 1990 Iroc/Z

Engine: LB9 305 TPI

Transmission: Borg Warner 5 speed

Will the TPI type heads work on the ZZ4 then? What other blocks are compatible with the heads? I know anything 87+ and non LT1 or LS1, but I would like to know specifics if at all possible.