Engine question. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GobbleStalker · 09-12-2010, 08:47 PM

I have a 72 longbox I am just starting and was going to have the 350 rebuilt. My question is are these truck all equipped with 4 bolt mains or will I have a 2 bolt. My trans is a 350th. The truck has air also if that matters.

Thanks
Kev

JimKshortstep4x4 · 09-13-2010, 05:32 AM

All of the 350 truck engines, (69-72) that I have seen have been 4 bolt main engines. Check the suffix code and block casting numbers to verify that the engine is an original 72 truck engine.

Jim

09-12-2010, 08:47 PM	#1
GobbleStalker GobbleStalker Calls Join Date: Aug 2010 Location: Port Hope, Ontario Posts: 653	Engine question. I have a 72 longbox I am just starting and was going to have the 350 rebuilt. My question is are these truck all equipped with 4 bolt mains or will I have a 2 bolt. My trans is a 350th. The truck has air also if that matters. Thanks Kev Last edited by GobbleStalker; 09-12-2010 at 08:49 PM.

09-13-2010, 05:32 AM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Engine question. All of the 350 truck engines, (69-72) that I have seen have been 4 bolt main engines. Check the suffix code and block casting numbers to verify that the engine is an original 72 truck engine. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC



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