289 chassis dyno

470 rwhp with a 125 shot
370 rwhp n/a.
now start in a new buil up and hope to double those numbers


289 .030 over, 12.5 to 1, stock rods and crank, port matched windsor JR's, victor JR, comp solid flat cam @ .600 with 268 278 @.050, 650 stage 2, hooker super comps,3 inch pipes into 3 chambers, msd everything, four speed, 5.14's, 26x 8.5 slick. Nos power shot plate.
Installed a bigshot plate at 300 horses and blew the ram iron clutch thru the block.

<font size=-1>[ This Message was edited by: fastback.brian on 7/30/02 3:28pm ]</font>

That's impressive power from a 289. Must get spendy putting high zoot gas in that sucker.

Which Comp Cam is that you're running?

Runs on 91 octane until the bottle's on. But my dyno run was with 91 and the small shot. That comp cam is the 31-641-5, oops,specs at 265 and 276 at .050. And would you belive no piston to valce clearance probs at all. The domes hit the heads but not the valves.

Very impressive! Those windsor jr's seem to be pretty good heads, contrary to some opinions. Mine seem to be excellent on my engine.

WOW[img]/phpBB/images/smiles/icon_eek.gif[/img]

I had a very similar 289 once, 030 over, 11:1 compression, pro ported 351w heads with 1.94/1.60's, similar solid cam(don't remember the exact specs...this was almost 10 years ago), matched Victor Jr intake, and a 750cfm Edelbrock. I never ran it on the bottle, and never put a drop of race gas into it. Solid 92 octane. It never even considered detonating lol...even during our hot Phoenix summers.

I dropped it into a 67 coupe...about 3100lbs, with a 4.10 9" and a toploader. I only got it to the track one time...where it ran a 12.20 on 295/50/15 BFG's, on the Hoosier Dirt tires I got 11.80's at about 118mph. Those little 289's flat rock. I never discount stories from guys about what their 'lil 289's did...I've been there =).

<font size=-1>[ This Message was edited by: Is1BadFord on 3/26/07 7:50am ]</font>