BBC Heads, where and what to get?
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From: Kingdom of Bahrain
BBC Heads, where and what to get? as the title goes gents, I am just checking for a friend, I have no clue about BBC but I get alot of advice from LS1tech about my LT1 and hope to get this matter solved here as well.
thanks in advance.
thanks in advance.
Staging Lane
Joined: Jun 2006
Posts: 63
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From: New Lenox, Il.
Originally Posted by TAEnvy
what kinda heads for a 6500-7000 rpm 427 BB but im not sure on power levels.
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Originally Posted by Poor Kid
I'm a big fan of Dart heads. I use their Iron Eagles on my 9000rpm big block without any problems. I have also used their Pro 1 aluminums of big blocks for the street and the all out race engine. They don't cost a million bucks like Brodix, but you get the same performance. Good luck.
Last edited by JUICED96Z; Jun 23, 2006 at 01:05 PM.
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The RHS Pro Topline 320cc heads are the best I've seen so far. We've got a set on our 468ci race engine and it made 856hp 644tq. The car has run a best of 5.47@126 in the eighth mile in 5500' DA and at 2350lbs. After we ported them, on a 4.310 bore and a 2.25 intake valve, the best good runner flowed 402cfm@.800" lift and the bad runners around 387-390. We are still in the R&D stage on a 2.300 320 cc head but so far we've got the good runners to flow 427@.800", 430@.850 and the bad runners in the 420 range @.800 lift. They 320's ported will outflow the ported 360's. The way they put CC's in the ports didn't help the flow aspect of the cylinder head. A better flow number with a smaller port is always better.
On The Tree
Joined: Dec 2001
Posts: 154
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From: Burlington, ON
I would check out AFR's CNC BBC heads. I have a set of their 357cc on my 565 BBC and we got 982hp / 812tq out of it on a DTS engine dyno a few months back. I havent seen too many conventional head BBCs make more than that.
