60šV6 Family Tree

[ndp663]

I was looking through the Family Tree and it has the bore of a 2.8 listed at 89mm while Summit Racing has the bore listed at 89.256mm. I was just curious as to which one was correct.

Thanks,
Nate

[Superdave]

89mm is 3.503"

89.256mm is 3.514" so that would be a .011" overbore. Dosen't look like Summit lists a stock bore piston.



http://60degreev6.com/local_links.ph...id=61&catid=15

[ndp663]

Thanks for clearing that up for me.

Nate

[geoffinbc]

The error happens when people round off the conversion of metric to standard. All 660's are metric and the specs for the tree came from my GM manual.

[ndp663]

Is there anywhere I can pick up a GM manual. I've seen the S-10 manuals, is that about the best I can get?

Nate

[geoffinbc]

www.helminc.com. They are about $80 a pop but worth every dollar. They go far beyond a Haynes or Chilton manual.

[85_Olds_Ciera]

www.helminc.com. They are about $80 a pop but worth every dollar. They go far beyond a Haynes or Chilton manual.

These folks work for me....at a much cheaper rate....

We sell factory manuals and literature for all makes and models of vehicles from 1902 to the present.

[geoffinbc]

It is the same price for my S-10 book. Actually I got the whole Helm Inc set in kit form with emissions manual and wiring diagrams for $135.

I feel better buying from Helm since they are the original publishers.

[85_Olds_Ciera]

I feel better buying from Helm since they are the original publishers.

I have no bones with Helm, except when they are out of original publication of a manual...and then want to sell you a "photocopy" version, without electrical diagrams/etc.

These folks do not publish, they resell published books/manuals, like this on ebay:

1988 Chevy Corsica & Beretta Shop Manual Supplement 88

[85_Olds_Ciera]

Actually I got the whole Helm Inc set in kit form with emissions manual and wiring diagrams for $135.

FYI, back in 1938, for Chevrolet's Car/Truck, all you needed was one shop manual for both.

Here's some more OLD ONLINE CHEVY MANUALS