'87 5ks cyl head: work for '86 CGT?

[Huw Powell]

> The Hangar Queen's almost ready to get tags, methinks... the downpipe and 02 sensor made all the difference. But Tom's CGT is gathering dust.
>
> This is the one we put a new headgasket/TB/WP in, due to coolant plumes out the pipe. As there is still water in #1 cyl and the oil is clean (and the head isn't warped) I'm thinking head crack I couldn't see when we had it apart. As such he is driving a borrowed '89 Pontiac LeMans (Daewoo crud) and wishing for the Coupe back.
>
> We have access to a nearly free '87 (11/86) 5ks engine which looks to be in good health. WU code states the firewall tag. 2309 cc and 10:1 compression, if memory serves.
>
> Is the compression difference in the dished pistons? Or would this head be utterly impossible to make work with the 2226cc engine in the GT?

Why not use the entire engine?  Not much more work, and you get the
bigger displ., the 10:1, oil squirters, all the good stuff.

It will run fine with CIS-E, so long as you use good gas, or you can dig
up a CIS-E3 computer and harness for it (need to swap DPR's then, too)

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/