More power outta 460 with good alum heads or stroker with iron heads?

Im really wanting to get into the high 500 to low 600 range on torque, was wondering if this would be better just building a 460 stock stroke and rod length with good h/c/i or building a stroker like 514 or 521 with iron DOVE heads with a good cam and intake jw im kinda new to this BBF thing THANKS IN ADVANCE! IM wanting a car i can drive to the track and possibly to shows when racing seasons off!

stroke it IMO..........

Welcome.
And go to the proven builds section, or the top here on engine tech. Dave Ohagens build up stickeys listed will get you there.
A 472 .080 overbore X 3.85 stroke and DOVE heads should get you there economically.
Goodluck.
Al

I'd do the stroker, no replacement for displacement

Stroker all the way! Put a good bottom end in it that way when you want more power (and you will) you won't be worried weather the bottom end will hold it.

Who sells the SCJ heads and P-51's ? I've seen the SCJ's in Summitt but not the others .

Thanks

Lem Evans!

$784.95 each. heads are assemblied.

stroke it FTW!!!

I would stroke it because when you want more power which will b about a week all you gotta do is bolt on some tfs streets heads

with stock bottom end and good heads your maxed out

my dove headed 545 small cam makes what your lookin for for around 3000-3500 bucks then throw on the street heads bam lot more power

If I had to do it again I would go with a forged 4.3 crank at around 9.5 to 1 and 4 bolt main so I could turbo it later

Dave is pointing you in a good direction here IMHO. You can get a real respectable hp with good heads vs. the tq the stroker makes, and use the better hp with proper gears to multiply the torque the engine makes. It's all about the total package. In a lightweight car, you don't want to make too much tq and have nasty street manners.

schmitty wrote: In a lightweight car, you don't want to make too much tq and have nasty street manners.

Speak for yourself...

I looked at the same thing that you are trying to do.
I went with a set of P-51 heads with a .030 over 460. Now my application is different. I am going be strictly bracket racing.
read this article/add at jon Kaase's web sight.
http://www.jonkaaseracingengines.com/component/content/article/40-kaase-products/188-kaase-p-51-cylinder-heads.html
If you look at the numbers on the cam, it is not that big. 255/262 at 0.50 lift, it is a roller with a lot of lift but I think that similar HP numbers could be made with a big solid.
Also, I got my heads from Lem Evans. He sells both the P-51's and the SCJ's and he is a super guy. When I did mine, he didn't have the super deal on the SCJ's like he does now. I don't know what your budget is but a call to Lem would not be a bad idea. The guy has tons of knowledge.
just my 2 cents.

dfree383 wrote:

Bernie wrote:

schmitty wrote: In a lightweight car, you don't want to make too much tq and have nasty street manners.

Speak for yourself...

how much faster you going to spin the tires on street pavement, with a 514 than a 460.....

Not as fast as you can spin them with a 598.


Oh come on, this is the only place I can be a kid ... Just because you have it, doesn't mean you have to use it all at once.

Very true that you don't have to use it, but sometimes the difference between using it and not is a very small window on the throttle, and that could mean the difference between making to the track in one piece and making it to the hospital in several.

dfree383 wrote: So how much is enough?

...more horsepower than your friend has, *thats* enough!

Shane

460= 600hp@~7000rpm's or 521=600hp@55-6000rpm's which one is gonna live longer? I think the stroker will live longer because of the lower rpm's to achieve the same power as the short stroke deal. The engine will be happier at lower rpms with a mild stroker. JMO so flame away!

bigblok2000ranger wrote:460= 600hp@~7000rpm's or 521=600hp@55-6000rpm's which one is gonna live longer? I think the stroker will live longer because of the lower rpm's to achieve the same power as the short stroke deal. The engine will be happier at lower rpms with a mild stroker. JMO so flame away!

IMHO, they are both going to last the same. For a true "street" engine, the engine spends most of its time below 4000 rpm with short bursts to either 6 or 7 grand, so it's not like you're doing 6 or 7k sustained. If you want to get more technical, the piston speed of a 4.3 stroke at 6000 rpm is 4300 FPM, and a 460 at 7000 rpm is 4492 FPM, again, not much of a difference.

Again, IMHO.

Dave

72mav wrote:Welcome.
And go to the proven builds section, or the top here on engine tech. Dave Ohagens build up stickeys listed will get you there.
A 472 .080 overbore X 3.85 stroke and DOVE heads should get you there economically.
Goodluck.
Al

Hey Al you mean .060 dont you

Lem Evans wrote:$784.95 each. heads are assemblied.

What is the price today, P51 ready to innstall
And SCJ price ?
Shipped to 18901 Pa