302?
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Freshman User
Joined: Aug 2007
Posts: 45
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From: springfield,ohio
302?
i just put a 302 in my truck and i was wanting to see how much hp you guys think it'll make round about. 80 302 block 10/10 crank flat top pistons 67 289 heads weiand intake idle to 6500 rpm roller rockers lunati hdraulic 292 duration 512 lift 230 @ 50 long tubes 650 stock distributor .im hopin for around 270-300 hp.
Post Fiend
Joined: Sep 2006
Posts: 14,325
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From: Island Southeast Alaska
I agree with Wayne. From where ya are to get that kind of HP depends on the aspiration. An engine is just an air compressor and needs to breath. With opening up the heads and matched headers ya may be close.
Posting Guru
Joined: Sep 2006
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From: Bristol TN.
horsepower TV did a dyno test with a stock 1970 reman 302 engine with just a summit 600cfm carb and a cheap summit racing intake and got 240hp and 317tq. They then put a bigger cam in (kept same carb and intake) and got 293hp and 332tq. Then they added 1.7 roller rockers and broke the 300hp barrier and 339tq. You have a big breathing carb, intake, cam, high compression heads, and headers so I would think you would have 300hp easy if tuned right.
Posting Guru
Joined: Sep 2006
Posts: 1,101
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From: Bristol TN.
yeah I know, I thought that was pretty high myself but as I kept researching online and in engine rebuild books over the years and talked to engine builders you would be suprised that when tuned right what kind of power these little engines will produce, Its all about the combo. I know the 289 heads he has are the bottle neck, if they were ported it would help out a lot.
Hotshot
Joined: Oct 2009
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From: Burbank, WA
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Post Fiend
Joined: Sep 2006
Posts: 14,325
Likes: 14
From: Island Southeast Alaska
That's it Reed in a nut shell. Let them breath. And balance and like that than just pour the fuel and air to them. Pony motors do like to scream. I find it is far easier to get quick cheap power from a pony motor then like an FE. But an FE can suck a Pony up the intake if ya can get it to breath and rev. Simple as that. The more the displacement the bigger the compressor. It's all about what ya can afford and what ya what it to do.
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Thread Starter
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Freshman User
Joined: Aug 2007
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From: springfield,ohio
ya the heads are just layin around so im gonna use them till i save up and get some afr's or something.we took the pressed in studs out and debating on putting in screw in studs in ourselves but not sure if what all we have to do to do it anybody know thanks for the info.
Hotshot
Joined: Oct 2009
Posts: 16,135
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From: Burbank, WA
ya the heads are just layin around so im gonna use them till i save up and get some afr's or something.we took the pressed in studs out and debating on putting in screw in studs in ourselves but not sure if what all we have to do to do it anybody know thanks for the info.
IIRC, you have to mill the bases for screw in studs, then drill and tap the holes. It's definitely a machine shop operation if you're not an experienced machinist with milling equipment in your garage. (and it doesn't sound like you are) Since you've already pulled the studs out, you're pretty much committed to that route now. You risk stud failure (pullout) and engine destruction if you try to run them by pushing studs back in the holes again.
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Freshman User
Joined: Aug 2007
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From: springfield,ohio
ya im not planning on putting the pressed in studs back in we just took them out it wasnt hard kind of a hillbilly way to do it with washers and crankem on till it pulls it off but we'll get it done.
Lead Driver
Joined: Oct 1999
Posts: 6,765
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From: Kalispell, MT
Just a tip choppy, these guys have been really patient so far and we're not a bunch of prudes, but I quit reading your posts about half-way thru due to lack of punctuation. I simply can't follow your train of thought the way it is.
fwiw - TV shows are for ratings, not for accurate data. Put your engine on a dyno if you want to know what it'll do. We can bs on the subject all day long and bench racing is fun, but at the end of the day all you have from us is opinionated bs.
fwiw - TV shows are for ratings, not for accurate data. Put your engine on a dyno if you want to know what it'll do. We can bs on the subject all day long and bench racing is fun, but at the end of the day all you have from us is opinionated bs.
Fleet Owner
Joined: Jul 2004
Posts: 27,283
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From: NM
Keep in mind too that that peak HP is truly a peak, about as pointed as Mt Everest. Unless you figure to be running at 6,000 RPM all day, you'll want a setup that gives good smooth torque in the 1500 - 3000 range. I suggest a flathead, of course 
PS -- ditto on the punctuation
PS -- ditto on the punctuation
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Freshman User
Joined: Aug 2007
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From: springfield,ohio
I thought this was a site for people to help people out.You people never give straight forward answers.Also I didn't know there was gonna be a bunch of english teachers on here complaing its all spelled right it may be just one sentence but you guys get the point I'm done with this site for good just a bunch of old that think they know it all.I'm done watin my time with this bull**** oops i said a bad word
Last edited by Fomoko1; Nov 22, 2010 at 12:27 PM. Reason: language!