Building an LT1, can I use a Vortec 350 shortblock?

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Oct 17, 2007 | 12:19 PM

#16

Injuneer

Administrator

Joined: Nov 1998

Posts: 71,094

From: Hell was full so they sent me to NJ

There's a member here who built a 427ci LT1 (4.00 stroke x 4.120 bore) using sleeves. The LT1 block has been pushed by many in excess of 1,000 flywheel HP. There's a member with a twin-turbo who claims he is now looking at 1300-1400 rw HP.

If it isn't built with an LT1 block, it isn't an LT1, IMHO.

Oct 17, 2007 | 02:13 PM

#17

bufmatmuslepants

Registered User

Joined: Jul 2006

Posts: 150

From: shelton, CT and Morgantown, WV

spring 2009 i get my ME degree...this sounds like a project to me

Oct 17, 2007 | 02:22 PM

#18

The Engineer

Registered User

Joined: Jan 2005

Posts: 1,388

From: Moore Oklahoma

Quote:

Originally Posted by bufmatmuslepants

spring 2009 i get my ME degree...this sounds like a project to me

Which, developing an LTx tall-block, or reworking an existing LT block w/ 4" stroke and 4.1" bore???

I have a 3.875" stroke LT engine (396 CID) with notches in the block near the pan mounting surface, rod cap-bolts clearanced and small base-circle cam.

WD