Small Block & Big Block Chevy Specific - BBC Heads, where and what to get?
LT1BRN
06-07-2006, 08:27 AM
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.
8a8mfh
06-07-2006, 05:57 PM
How much hp are you looking to run? Max rpm? Whats the CID of the Big Block? Does your friend prefer iron or aluminum? Used factory or new?
Tiresmokin
06-14-2006, 09:57 PM
I have a complete set of Dart Pro 1 345cc. New, never bolted on. I am going with a smaller head. $1800.
BLWN1
06-15-2006, 12:17 AM
That price pretty firm? Thats what I want, but dont really need them yet....
TAEnvy
06-22-2006, 10:16 PM
what kinda heads for a 6500-7000 rpm 427 BB but im not sure on power levels.
Poor Kid
06-22-2006, 10:39 PM
what kinda heads for a 6500-7000 rpm 427 BB but im not sure on power levels.
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.
JUICED96Z
06-23-2006, 01:23 AM
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.
I know of a local guy with Pro 1's on his BBC car and it makes sick power, few other guys run them with good results also.
91Z28
06-23-2006, 02:33 AM
http://www.airflowresearch.com/357bbc_rh.php
WickEdSix98
06-23-2006, 09:55 AM
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.
8a8mfh
06-23-2006, 06:53 PM
This topic is useless unless we know the intended purpose of the engine.
Read this. (http://www.maliburacing.com/patrick_budd_article.htm)
MattG
07-13-2006, 05:26 PM
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.