Big horsepower 318 builds

273 said
I know your not saying this but I think hp/cid is where people get screwed up thinking it's hard for small engines to make power.

Just cause say 1.6 hp/cid is hard for a large engine doesn't necessarily mean the same for smaller engines, cylinder head is the main part for any desired hp level.

We know a fully ported /6 head can make about 300 hp so a 170 /6 making a 1.6 hp/cid for 260 hp isn't out of realm of possibility using nothing overly tricky than mainly reworked factory parts now a 543 stroker big block is gonna require a little more than a ported out 440 head to make 1.6 hp/cid for 870 hp and be a fully custom build.

There's a bunch of heads that can support 500hp in a 3.91-3.97 bore the only slightly tricky thing is getting the valve train to work at 7000-8000+ rpm.

And yet some guys are doing it with stuff most say it cant be done with like stock heads.....
http://i151.photobucket.com/albums/s153/johnsmith_45/byronwheelstand.jpg

"I had a stock crank .04 overbored 360 in the Demon that went 10.25 at 129.99 mph. Ported 587 heads,.590 racer brown flat tappet cam, victor 340 intake, crane gold 1.6 rockers, 11.75 to 1 comp ratio. Motor in car now is a .04 over 360/ w a 4.100 stroke crank, [418 c.1.]. Still has the racer brown .590 cam and ported 587 heads, a little adtnl. work to heads, flat top piston out of the hole .080, 13 to 1 comp ratio, Victor 340 intake, Crane 1.6 rockers. Burns 110 octane race gas or would be fully streetable. Never over 190 degrees even when it's near 100 deg. outside. Has gone as fast as 9.68 at 135 mph and as far as 450 ft on the rear wheels. Definetly over 400 to 500 horse . Not to shabby for a junkyard headed small block in a car that weighs 3060lbs. I never recall seeing a brand X sm block w/ junkyard heads anywhere near my e.t. at or near 3060lbs. I chase alcohol burning, roller cammed, aluminum headed sm block chevys all the time."

Wallace Calcs says close to 700 hp for the weight to ET and that with ported factory cast iron heads.........You know the ones people throw away because they cant make power.....