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machine shop said vortecs would sen dmy compression to like 11:1 thats insane high so should I hold of or use the 441 350 heads I can get and have a performance valve job done on them tougher valve springs Im using comp Xtreme 268 cam 5,7 rods and speed pro hypertec flat top pistons can that get me the 375- 400 hp
The 441 head with a bowl blend,gasket match and a good valve job will work fine.Quote:
Originally Posted by maineevent
With the parts you have and a good rpm performer ,600 vac. carb should put you in the 350 hp area.
would it be worth selling the pistons i have buying some dished pistons and getting the vortec heads
quick questions are the aluminum vortec heads any good seen some on ebay real cheap never heard anybody talk about them
ive heard that vortec heads work awesome just keep them cool ive heard they will crack in the exhaust ports,
Not at the hp level you are at I.M.O.Quote:
Originally Posted by maineevent
What engine is this and what pistons are you using? FT pistons with 64cc heads in a 350 would not be 11:1.
Mainevent....
The "vortec" aluminum heads on Ebay are not Chevrolet-made heads and dont appear to be Vortec.....they dont have the Vortec bolt pattern on the intake....nor are they "pro-race" heads......I doubt any racer that is a "pro" would use stuff like this. Yes, they are cheap aluminum heads. Yes, they will fit a Chevy small block....but their ad is pretty much all hype.
Chevrolet calls their Vortec-derived aluminum heads "Fast Burn" and they sell for somewhere in the $1100 range complete.
MI 2006 it's a 1970 400 sbc 4 bolt soon to be a 406 sealed power flat top pistons for 5.7 rods oh and the aluminum vortecs my cousins was thinking about buying for his 350 but he has domed pistons and his compression is 10:5 with normal cast iron heads but thanks for the info