Maybe I'm bored with all the bore relieving or what but after about 9 stroker motors in a row I"m a little "stroked-out". I love strokers but sometimes, somehow it makes it almost too easy to make decent power anymore....you gotta admit the 'turn key' 'Kit' recipie approach has taken at least some of the Hotness out of Hot rodding when almost anybody can do it in a "pick one from column A one from column B" method

So....Show me some old school, wind-em up TIGHT stock stroke horsepower. My first sub 12 pass was in a 340 dart with W2's and a 4 speed some 30 yrs ago; I still love the change in pitch you get only from a +7K small block!

Keeping in the street theme show me a combo that will make 500hp with the SMALLEST cam required that'll get there. 500 Crank hp should put a typical A body (no real exotic suspension) into the high 10's pretty easy no matter how many cubes you got.

Can't wait to fire up this 341"/318....just ordered my pushrods from Smith brothers after scoring a set of old school 273 rockers. I know it won't make 500 (but it could with a solid cam and more r's) but it should make at least 460 by 6500rpm which should be plenty for an 85" wheelbase!

http://www.youtube.com/watch?v=wrB62FSfAoU

Hey Bobby,
Nice to see that little motor is almost done. Looking forward to hearing how well it runs.

For a 340 to make about 500 it needs to make peak power around 7200 and for that you need some really good heads in the 270+ range and a cam in the 255+ @.050 with 1 3/4 headers and an 800+ cfm cam. Solid roller in the .575 range should make a high winding 340 make 500 pretty easy with better torque than a F/T.

I've always felt 450 was pretty easy to attain and still be streetable, even with a hydraulic cm and a 6500 redline. i want to see if anybody has ever made a bonafide 500hp with a stock stroke 340 that was Street driven.

Darryl.....I'm so tempted to try Goldmemember's solid F/T on this thing and I might just yet....with the wheelbase on this thing I want to "ease into the combo so i'll start with a slightly milder and 500-700 lower RPM cap and see how it goes....hte bottom end is there EASY if I want to turn up the wick

how about one of those nasty roundy round engines...they make even more...and cost more too

I think you should put a solid F/T in it. Just make sure you have someone there to get a pic of it on the rear bumper.

I'll chime in on this. My 360 is .040 over, with forged KB pistons, nominal compression is 12.5. It now has Eagle H-beam rods and very modest porting on iron heads. I'm running a Weiand X-terminator intake, which probably doesn't make quite as much power as, say, a Strip Dominator. The cam is the ancient but effective MP 528 solid, augmented by 1.6 rockers. Nothing fancy for an oil pan. I have 1 5/8 headers, which are probably on the small side.
The original, which I blew up, had an ancient set of TRW slugs which were well worked over to remove weight, but were still heavier than the new KB's. With an LD4B intake, that motor made 450 (well, 447, actually) on the dyno.
From that, I'd say I'm in the 480+ range right now. Next time around, we'll upgrade to a mild solid roller with similar duration and centerline to this cam, a bit more port work, and different intake. Yeah, I think 500 is within reach without going overboard.

Any more out there?

C'mon small block guys, 500 in an A body should handle 600 in a b, right?

Small blocks get no love

Being mainly a big block guy I sympathize....I'll bet a similar "B" motor thread would probably be 3 pages by now

Ok here is an old one Landy gave me on the phone, 360 .030 over,13.6 -1 KB's, 580-600 crane solid, ported 308 heads , M1 Intake 830 Holley 2 in open spacer, ran 10.80's good air @ 3600lbs. You tell me how much HP it was. Same combo with Ross 10.5-1 and Crane 540 -560 cam ran 11.30's. Back then I couldn't keep head gaskets on it with high compression so went down to 10.5-1

Post deleted by prochamp

Last years' EM 4.07" x 3.31, 10.46:1, 239º @ .050" solid cam.
Tuned up 360-2 CNC heads, Victor W-2 and Pro-Systems 1050

Never dyno'd but pulled strong , stock crank 360 .030 over h beam rods with 0 deck kb 107s , home ported J heads 2.02/ 1.60 milled closed chamber .075 mopar .028 head gasket, hyd roller 242/248 @ .050 .600 lift 108 in @ 104.5, gasket matched m1 single plane 850 holley , 1/ 3/4 hooker headers, 3800 stall , Mud motor pulled strong to 6500na and 7000 with 125 No2 shot, very easy build and no piston to head prolems with over 500 passes about 50 on No2

here's my combo, what do you think it makes?
360 .030 over
probe light weight flat tops, down in the hole a few.
eagle rods.
stock stroke stock crank
comp 308R street roller, [Email]262@.050/[/Email] 575lift
1.6 rockers
11.5:1 cr
indy 360-1s fully ported by Dwayne, 317+ at 700 with good low to mid numbers
indy intake/ 1050 dominator

I run it on a 50/50 mix could be street driven anywhere.

Emarine, that sounds like it would be right around 500, My approach is pretty close to that with my 341" except I've got bowl ported/pinch relieved E-heads, Comp HR 236/242 @.50 .520/.540 on 112 in at 107 (need to spread the torque for obvious reasons) aluminum rods and 10.2:1, I'm looking for ~460 @ maybe 6300 or so, by my calcs that should be pretty close...whatcha think?

Quick, what's your .450 and .600 lift numbers look like? You've got enough flow at .700 to make ~625 my my "rule of thumb" but guessing you've got in the ballpark of 565 right there...or about as much as I'd want to throw at a cast crank anyway!!

That sounds like one BadAzz Munchkin motor!!!

S/St3040, That is VERY IMPRESSIVE power at a very low RPM from a short stroke motor, I know you're having to work the average 2500-6500 HP/Torque for the EM format. Like I said earlier with 340's the temptation is too easy for motors that love to rev to just throw the flow and cam to them and let the crank wind up tight to make HP.....so your combo is 'mucho impressivo'....I thinking you had some killer work (epoxy maybe?) in that Victor intake to bring the torque in early and use the HP up by 6500, I would think the smallish cam can only get you so much grunt in the middle without the intake pitching in.... That was the Highest Average per cube contest, wasn't it?