Oh I refuse to let someone of your nature run me away.Hate on Hater,can you see me now!!
I can believe that... they run a circuit racing class here that must use 289 "stock" crank, block, heads and single 4 barrel. They knock out around 400hp with a flat tappet, alittle more with a roller. Streetable? I guess you could but abit of compromise, they are not really "screamers" like you would expect.I'll just post a 289 combo that yielded 375 HP on an engine dyno and 315 RWHP on a chassis dyno. Later on, the carbs, distributor and timing were tuned and the new dyno resulted in 340 RHWP (~400 HP at the flywheel)
Factory 289 cranks are about indestructable, rods are fine to, same goes for the 302's.This is a really good post! A lot of great info and FE is being entertaining as usual....who could ask for anything more?
I never would have thought a stock 289 crank, rods/arp bolts and flat top pistons could turn to 7000 rpm with no problems, can the 302 do the same? I never hear about a 302 doing that.
By far the biggest issue these guys have is cracked/broken cranks.... its very common. Most seem to like running a pretty heavy Carillo rod and domed piston deal which probably won't help.... but this is "road" racing, not a drag race application.Factory 289 cranks are about indestructable, rods are fine to, same goes for the 302's.
Those guys are serious. I discovered them and spoke to them a few times 8-10 years ago when I was thinking about my engine build. At that time they recommended the Comp 282S for a mechanical street cam based on years of experience. Probably the main reason I selected that cam for my 331.Not offering this as proof. Just a FYI. These guys claim 486 hp at 7450 rpm without using aftermarket heads. I would've thought the rpm would be even higher than that.
Like I said, just FYI.
"Cobra Automotive" engine parts and horsepower page
Way to go FE. You probably have a shotgun and shells filled with rock salt, too. Ya big meany butt!Yep, I've driven away another promising young member... Sorry guy's
My response was for the guys who make it sound so easy to make a real 400 + hp with stock ported 289 heads on a 289.This retard will never come back thank god. let this thread rest I was correct the entire time