427 Engine Block

[Keith B.]

Can anyone tell me if the 427 c.i. engine with a casting number of 3904351, was ever used in the truck application?

[lyndon Sharpton]

Re: 427 Engine Block

the 3904351 block is identical to the 3904354 truck block so i would say that it was not used in trucks in my book it is a Corvette only block

[lyndon Sharpton]

Re: 427 Engine Block

the 3904351 block is identical to the 3904354 truck block so i would say that it was not used in trucks in my book it is a Corvette only block

[Joe L.]

Re: 427 Engine Block

Lyndon-----

The GM #3904354 is a tall deck truck 366 cid block. Tall deck blocks were used in MD and HD trucks, but never in passenger cars of any sort.

The 3904351 block is a short deck passenger car block. It was used in both full size passenger cars and Corvettes during the 1967 model year only. It may have been used in LIGHT trucks, too, if any 1967 model year light trucks were equipped with 427 cid engines. I don't think that any were, though. I believe that any 1967 model year MD or HD trucks that were equipped with 427 engines, if any were so-equipped, would have used a tall deck 427 block. If such a block existed, it would have a casting number other than 3904351.

[Joe L.]

Re: 427 Engine Block

Lyndon-----

The GM #3904354 is a tall deck truck 366 cid block. Tall deck blocks were used in MD and HD trucks, but never in passenger cars of any sort.

The 3904351 block is a short deck passenger car block. It was used in both full size passenger cars and Corvettes during the 1967 model year only. It may have been used in LIGHT trucks, too, if any 1967 model year light trucks were equipped with 427 cid engines. I don't think that any were, though. I believe that any 1967 model year MD or HD trucks that were equipped with 427 engines, if any were so-equipped, would have used a tall deck 427 block. If such a block existed, it would have a casting number other than 3904351.

[Craig S.]

Re: 427 Engine Block

Joe - out of curiousity, were all the 4351's drilled for 4 bolt mains, or, like in 66 with the 942 block, were some lower HP versions 2 bolt drilling on the journals? Just curious.....Craig

[Craig S.]

Re: 427 Engine Block

Joe - out of curiousity, were all the 4351's drilled for 4 bolt mains, or, like in 66 with the 942 block, were some lower HP versions 2 bolt drilling on the journals? Just curious.....Craig

[Clem Z.]

Re: 427 Engine Block

they came in both 2 and 4

[Clem Z.]

Re: 427 Engine Block

they came in both 2 and 4

[Terry F.]

Re: 427 Engine Block

Some were drilled 4 bolt and some were drill 2 bolt. Terry

[Terry F.]

Re: 427 Engine Block

Some were drilled 4 bolt and some were drill 2 bolt. Terry

[Craig S.]

Re: 427 Engine Block

Thx Clem!.......Craig

[Craig S.]

Re: 427 Engine Block

Thx Clem!.......Craig

[Craig S.]

Re: 427 Engine Block- thx Terry! *NM*

[Craig S.]

Re: 427 Engine Block- thx Terry! *NM*