[Z06] LSX 454 crate engine

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Jul 7, 2017 | 10:55 AM

mangfr00

Thread Starter

2nd Gear

Joined: Jul 2017

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LSX 454 crate engine

Does the GM LSX 454 crate engine have a long enough cylinder bore to preserve the piston skirts with that 4.125 stroke?

I'm assuming that the GM engineers matched the pistons accordingly to assure long engine life, but still want to hear expert opinions

Please

Jul 12, 2017 | 08:45 AM

cv67

Team Owner

Joined: Oct 2004

Posts: 81,241

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From: altered state

St. Jude Donor '05

noone here wil know more than the engineers that designed them.
imo anything GM builds will outlast aftermarket stuff. Nothings perfect

Jul 12, 2017 | 02:43 PM

zeevette

Race Director

Joined: Sep 2005

Posts: 11,060

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From: Pasco WA

Not sure, but LSX blocks can be had with longer deck height.

Jul 13, 2017 | 12:38 AM

romandian

Drifting

Joined: Nov 2014

Posts: 1,978

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From: Switzerland

"This durable iron block is based primarily on GM's production LS7 block but cast with more material in key areas, including a thicker deck and bores, to support 454 cubic inches or more."

Jul 21, 2017 | 09:20 AM