[cosmic]

I think they came with the block...
block is 3932386 / v1220fl, so we know this is a 327/2bolt/flint/dec20/327-at and this is true up to this point because it was attached to a th350 (obviously factory because the seals were SO bad/leaky!) but what are the specs on these heads?

from left to right there are a number of stampings/castings.

3998991 21 gm50 e42

the only thing not stock on this 69' motor is the 2 barrel is long gone and a new manifold was put on somewhere along it's journey.

can you id the heads for me?

thanks!

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poor man's '69 with lots of road gunk underneath...but Im not gonna give up...ever!!!

[HwyStarJoe]

This is all I could find: Not sure how accurate it is...

3998991....72-73...307/350......75cc chambers


Go AF!




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Joe
WCA Member
HwyStar@Rochester.rr.com
'69 wallet crusher
'97 Blazer - Bad wheel hop!

[Chris Davis]

Here you go. http://www.partscavengers.com/techli...adcastings.asp
They are 74.5 CC with 1.72" and 1.5" valves. Used on 307's and 350's from 1968 to 1979.