505 Big Block Chevy Motor - Big-Block Street Heat

Here's 700 Horses And 650-Plus Lbs-Ft From A 505-Inch, Pump Gas Big-Block Chevy That We Closely Watched Costs On.

David Vizard Jan 30, 2007 0 Comment(s)

RHS big-block Chevy 320 head flow tests.

LIFT BAD IN GOOD IN EXHAUST
100 77.1 77.1 62.1
200 161.3 161.7 125.8A
300 228.7 231.1 162.4
400 291.8 295.7 195.6
500 346.1 350.9 222.7
600 375.0 382.7 245.9
700 371.1 383.7 264.4

Here are the "as cast" numbers for the RHS heads.

Even as cast there is enough airflow From the RHS 320 heads for 700 hp on a 540-inch engine. When simple porting techniques (that is no more complex than a near beginner might do over a couple of week ends at home) are applied the numbers look even better. The figures achieved with the T&L ported heads are as below.

Sources

Professional Products
Hawthorne, CA 90250
323-779-2020
www.professional-products.com
Racing Head Service
Memphis, TN 38118
877-776-4323
http://www.racingheadservice.com
Ross Racing Pistons
El Segundo, CA 90245
800-392-7677
rosspistons

COMMENTS

TO TOP