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FBIRD69's 1969 Firebird

2024 March
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Davids build thread 2

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for those that dont know, my mods are

3500 heads

comp 986 springs, locks and retainers

ported intakes

65 mm tb

ss headers


custom 2.5 in cat back

ls lifter springs

1393 grind cam,specs are:205.2/205.4 @ .050 duration, 264.6/264.6 @ .006 duration, .533/.533 lift. 110 LSA

to compliment the cam ive decided to go high compression. with dohc 3.4 pistons. additional parts will include tri metal con rod bearings , and head studs. other parts are just replacement parts like intake and head gaskets

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:lol: j/k

Sounds like a great progression! :cheers:

Also I moved your build thread to the Progression Place section.

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well its not my pic but i just ordered these this morning. already in the mail, and my fuel pressure gauge sold while i was at work so ill be purchasing the head studs later today. with the pistons i selected, compression will be bumped from 9.1:1 to 12.3:1. hopefully not too high to run on pump gas


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gonna add .075 compressed thickness cometic head gaskets to the list. itll drop compression to 11.6:1. a little more managable

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