Posted by mackiesback (63.11.56.99) on April 22, 2001 at 12:07:44:
In Reply to: 302 stroker posted by Fastman on April 22, 2001 at 05:41:28:
: I am building my 70 Maverick for racing, but my recently acquired 73 Grabber will be restored to original condition. I was thinking of doing a few mods to the 73 internally while retaining a stock look. A shift kit and a 3.25 gear ratio rear would be a must. But for the 302 I wanted a bit more torque. How does a 331 sound? Has anyone done this and been completely happy with it? I was thinking of "Power Heads" flowed to 203CFM intake/164CFM exhaust, 331 cast crank, Crower rods with .030 over Hypereutectic pistons, 9.5-10:1 CR, Comp Cams Aluminum Roller rocker(1.6 ratio), Ford F-303 roller cam (.512 lift/ 288 Adv. duration or 226@.050 lift), silent type gear drive, Performer RPM intake(ground off letters and painted blue), and a 625-650 CFM Holley. I also suppose Performer RPM heads(229CFM intake/172CFM exhaust) could be painted blue as well to retain a stock look and increase performance, it just depends on the money I can put into the car.
: Anyone have a Desktop dyno and could tell me what kind of power I am looking at with either cyl. head setup? Thanks.
Three thoughts:
347's have become quite common and therefore, cheaper, You may want to go 347.
Aluminum heads will allow you top run more compression as they dissipate heat better.
Desktop dyno is lame whem it comes to cyl. head data. I think you could make 1hp per cube pretty easily, especially with aftermarket heads.