new build

what is the best ci. to build for a 600hp engine in a 3900lbs street car.

Cheapest way would be a stock stroke deal on race fuel with just about any conventional head or SCJ's. If you are looking for a pump gas deal, a 4.15 or 4.3 in a stock block with any of the same heads. You don't need anything fancy for heads, just a good ported set of irons would do, or any of the conventional aluminums. A hydraulic flat tappet, with a Victor intake will make it happen.

Here are some generic builds that have been done many times over and have had great success. https://www.429-460.com/t121-big-block-ford-horsepower-chart-info-gathered-by-djohagin

well i got a429 heads and ford victor but need crank rods and piston would like to run on pump gas

more cubes be easier to get there with the pump gas I would think. 4.42 bore, 4.5 stroke deals seem to work good.

Damn,I hate saying this but,I agree w/Jon. More cubes would make it easier and you've got them if you need more.jmo

will the a429 get me there with 10 to 1 comp.

will the a429 get me there with 10 to 1 comp....The A429's will get you there easily

quick 52 wrote:will the a429 get me there with 10 to 1 comp.

This depends entirely on how well prepped the A429's are. Even as good as these heads are, if they have a hack job on the valves and seats and very poor flow characteristics, you will be dissappointed, but if they are properly set up with good porting and a proper valve job, they will do that and more.