Thread: big block heads, which ones?

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Hi

I have a 68 camaro with a 454 that is supposed to be bored +0.03 the head casting numders are: 14092360, info on the net says that this is a open chamber truck head with 113cc or 118cc. But i have a set of reconditioned heads with casting number 3917215 witch is a closed chamber head with 101cc.
Is my info on the heads correct? and would I be able to use the close chamber head on the open chamber block, for more cr, and power?

By the this is my first mail here... I just accidently stumpled on to this site and loved it!

Sune Larsen from Denmark

Welcome aboard Sune.

Yep, the 215 is a '67-69, closed chamber head used on both the 396 and 427. You can use them, but I would suggest you do a clearance check on your valves to piston head. Especially if the pistons have any kind of dome on them. Next consideration would be fuel availability. You're likely to have a compression ratio somewhere in the 11's depending on the piston head, which is going to have a fairly high octane requirement. I don't know what you have available over there, but you need to check it out.

here goes, heads ending in 049,781,236,820 are concidered the best heads(stock) they are 119 cc. some 236 heads have small valves also 241 are good , but have small valves too.. mike

Hi again.

Thanks you for info, as for fuel 95 octane with or without lead addetive is what is avaliable everywhere 98 octane leaded can be found.

by the way. what kind for power do you guys think I can expect with the closed chamber on the otherwise stock bottom end. I run a torker II intake and headers with pirmary tubes witch has an od of 1.88" and a true dual 3.5" exhaust the rest of the way.

Sune Larsen