Questions about Big Block Chevy Tall Deck Engines

Sandy sganz at wgn.net
Sat Nov 7 21:46:40 GMT 1998


I don't remember if the rods were longer in the Truck motors, but I know
that they used a 4 ring pistons and that was the reason the extra height
was needed in the deck. I don't thing the deck was 1" taller, less, but not
100%.

Sandy
 
At 11:54 PM 11/6/98 -0500, you wrote:
>I'll try & find it in print for you, but my "8 track" era brain recalls the
>366, 396, 402and 427 truck and car haveing the same 
>crankshaft demensions, while all the high decks had forged 
>ones.  High deck engines had longer connecting rods to 
>compensate for the one inch higher deck, and reduce piston 
>skirt side loads..  4 bolt mains, thicker decks and cyl walls.
> The 366 heads were terrible from a flow standpoint.  
>HTH
>BTW,  8-tracks rule!
>
>
>> Hope there is some engine historian out there who can help me out 
>>   on this. I'm trying to put together a 1970 C-50 truck with a 427 
>>   engine. The block and crank may be bad on this one (I haven't 
>>   taken it apart yet) but I know where to get several 366 engines. 
>>   Want to figure out if I can put a longer stroke crank in a 366 
>>   (and what displacement will it give) or if I can slip a 454 block 
>>   under the 427 truck heads and manifold.
>>  
> 



More information about the Diy_efi mailing list