BBC Iron heads

[STK1217]

I know this is not a stocker project but the question is for the BBC stock guys(or anybody who might know). I'm trying to find out the best (IYO)flowing factory iron oval port head with a gasket match-clean up the pockets and 2.19&1.88 valves, cam lift in the ..500 to .600 range,nothing special (open or closed chamber). It's for a 6000 rpm 454 street engine in a 3500lb car. Thanks Mario.

[1320racer]

215 semi closed chamber.

I ran these heads on a pump gas 468 from '95 to 2007 and each time the engine was freshened, the heads were massaged a little more. Ultimately going from a 2.19/1.88 valves to a 2.25 intake valve. Best numbers in my 3880 lb. footbrake launched Chevelle were 1.28 60 foot and 10.07 @ 131.

[STK1217]

Nice ride 1320 and thanks for the reply.

[bobby]

Originally Posted by 1320racer

215 semi closed chamber.

I ran these heads on a pump gas 468 from '95 to 2007 and each time the engine was freshened, the heads were massaged a little more. Ultimately going from a 2.19/1.88 valves to a 2.25 intake valve. Best numbers in my 3880 lb. footbrake launched Chevelle were 1.28 60 foot and 10.07 @ 131.

I have a set of these heads for sale. Not sure if any work has been done on them as we bought them on a running engine a spun a bearing. Havn't had the heads apart.

[HP HUNTER]

Originally Posted by STK1217

I know this is not a stocker project but the question is for the BBC stock guys(or anybody who might know). I'm trying to find out the best (IYO)flowing factory iron oval port head with a gasket match-clean up the pockets and 2.19&1.88 valves, cam lift in the ..500 to .600 range,nothing special (open or closed chamber). It's for a 6000 rpm 454 street engine in a 3500lb car. Thanks Mario.

I would say either a 049 or 781 head would be best. We have been 9.50s @ 3630 pounds, 1.29 60 foot on a 10.7 comp 496.

[larry asa]

049 small plug head is the best. late 69 ones
Larry

[STK1217]

Thanks HP and Larry- Most people agree with you- 049 and 781's. Thanks Mario.

[1320racer]

I'll take a small chamber requiring little to no dome to achieve a specific compression ratio over a large chamber requiring a big dome to achieve the same compression every time.

FYI, through the end of the 2007 season when I retired my 468, there wasn't one 468 with 049/781 heads installed in a similar weight Chevelle, competing in Division 1 brackets that could run on par with my ride no mind quicker.

Matter of fact, my Chevelle ran quicker than EVERY n/a 454, 496, 502, GM's 720HP 572 and most 540's regardless of which head they ran, in a similar Chevelle here in Division 1 brackets, just saying.

BTW, the devil is in the details and the performance that HP Hunter speaks of also comes by way of a $6,000 Coan XLT 350 trans backing up that 496.

Just saying.

[HP HUNTER]

Originally Posted by 1320racer

I'll take a small chamber requiring little to no dome to achieve a specific compression ratio over a large chamber requiring a big dome to achieve the same compression every time.

FYI, through the end of the 2007 season when I retired my 468, there wasn't one 468 with 049/781 heads installed in a similar weight Chevelle, competing in Division 1 brackets that could run on par with my ride no mind quicker.

Matter of fact, my Chevelle ran quicker than EVERY n/a 454, 496, 502, GM's 720HP 572 and most 540's regardless of which head they ran, in a similar Chevelle here in Division 1 brackets, just saying.

BTW, the devil is in the details and the performance that HP Hunter speaks of also comes by way of a $6,000 Coan XLT 350 trans backing up that 496.

Just saying.

The trans cost 3000.00, just saying. I think my 10.5 comp 454 with a .560 lift flattappet and 049s @ 3720 would have run right with your 68 in the same conditions. BTW Johns red bull should run 9.3s when he gets it dialed. Just got off the dyno with Bob West's engine, can you say 1.2 60s in his 29.00 baro?

[HP HUNTER]

Originally Posted by 1320racer

I'll take a small chamber requiring little to no dome to achieve a specific compression ratio over a large chamber requiring a big dome to achieve the same compression every time.

FYI, through the end of the 2007 season when I retired my 468, there wasn't one 468 with 049/781 heads installed in a similar weight Chevelle, competing in Division 1 brackets that could run on par with my ride no mind quicker.

Matter of fact, my Chevelle ran quicker than EVERY n/a 454, 496, 502, GM's 720HP 572 and most 540's regardless of which head they ran, in a similar Chevelle here in Division 1 brackets, just saying.

BTW, the devil is in the details and the performance that HP Hunter speaks of also comes by way of a $6,000 Coan XLT 350 trans backing up that 496.

Just saying.

Ed, forgot one thing here, my customer ran consistant 9.70s in his full weight small tire nova at Atco for two years strait with my 049 heads. 505 CID.