Re: Re: Re: 427 chevy

Posted by Jon H on February 21, 2005 at 10:34:31 from (69.26.17.193):

In Reply to: Re: Re: 427 chevy posted by xragman on February 20, 2005 at 10:00:55:

Yes,the truck only big blocks raised the deck height enough to allow 4 ring pistons to be used.
An easy way to identify the tall block truck engines is to look at the area where the water pump fits against the front of the block. The low block passenger car and pickup engines have the heads right against the machined water pump flange,while the tall block truck engines have about 1/4-3/8 inch of unmachined cast between the machined flange and the head.
The tall block truck engines have longer pushrods and distributor to compensate for the taller deck height,and a wider intake manifold,so these parts do not interchange with the low block parts. It is also possible that some acessory brackets may not interchange between low and high block engines. I have been told that the 8.1 big block used in pickups is also a tall block design like the truck engines. For what ever reason,the 8.1 also has a different firing order than the older big block chevys.

Follow Ups:

• Re: Re: Re: Re: 427 chevy JIMBOB 19:23:28 02/21/05 (3)
  • Re: Re: Re: Re: Re: 427 chevy D urbach 23:20:32 02/25/05 (0)
  • Re: Re: Re: Re: Re: 427 chevy Bob 23:09:53 02/21/05 (1)
    • Re: Re: Re: Re: Re: Re: 427 chevy JIMBOB 20:26:13 02/22/05 (0)

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