HP/Ft.lbs. expectancy from 289 hipo?

Topic: HP/Ft.lbs. expectancy from 289 hipo? (Read 1051 times) previous topic - next topic

HP/Ft.lbs. expectancy from 289 hipo?

July 28, 2009, 07:21:00 PM

I may be asking for a good taunting. But I was wondering what the max performance expectancy would be on my 289 hipo. with out a supercharger, with supercharger, should I even consider nos. Nos with supercharger, without? wondering what your opinions would be.

I may be off my rocker, but I'd love to hit 400 rear wheel Hp. Even if it takes a supercharger to do so. (although I'd love to get close without help, it just isnt gonna happen. lol.)

I'm pretty green when it comes to knowing what to look at when it comes to building a motor, (I know whats in a motor, just not wich size cams, lifters, etc.) Feel free to take me to school if you'd like. lol

I do know that statisticly, the HIPO's had 271hp from factory with a 4barrel carb. but I'm sure that was at the crank, not the wheels. According to Wikipedia, Carol Shelby got around 390 hp with a supercharger, could I get near 400 "rear wheel" hp. with nos, or am I just asking for trouble? lol

HP/Ft.lbs. expectancy from 289 hipo?

Reply #1 – July 28, 2009, 09:46:57 PM

If you have a true 66 289 HiPo (complete) and you want to go fast, sell it to a collector and take the cash and build an engine. Those engines are pretty rare and desirable for a restoration.

Can you build a SBF N/A to get 400 RWHP? Sure. It won't happen with those heads, cam, carb or intake. Hate to see someone part out a complete HiPo to hot rod it.

Check out sbftech.com for great tech information on how to build a solid engine. You need to have 10 posts to get to the really good information.

Good luck!

HP/Ft.lbs. expectancy from 289 hipo?

Reply #2 – July 28, 2009, 09:52:18 PM

well, this motor isnt going anywhere, I plan on eventualy putting it back into a 60's ford. mustang, fairlane, comet, etc. But, I'd like to figure something out, and make the car scream! lol

HP/Ft.lbs. expectancy from 289 hipo?

Reply #3 – July 28, 2009, 10:22:37 PM

Even with a hi-po, it ain't gonna happen with the heads in stock configuration...

This is a real solid lifter "K code" 289??? Not the common hydraulic cammed 225Hp version???

Anyway HP figures prior to '72 are with the engine running with open dyno headers, jetted for max performance and no accessories... Once installed with full exhaust system, accessories, and street tune, was common to lose 25-30% of the HP...

I know guys with stock 306hp 289 Shelbys...On a dyno they usually pull about 200Hp at the wheels through the top loader 4 speed...

HP/Ft.lbs. expectancy from 289 hipo?

Reply #4 – July 28, 2009, 10:34:17 PM

yep its a k code, still has the solid lifters and all.

HP/Ft.lbs. expectancy from 289 hipo?

Reply #5 – July 29, 2009, 01:25:55 AM

not planning on selling, but I'm curious, How much do you think one of these motors would go for?