rough hp estimate
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Joined: Jan 2014
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rough hp estimate
hi im ted a new member. i am restoring a 85 f150. sandblasted frame, all new everything underneath. i did up a 351 windsor(86 block, 69heads) i must mention that i was on a tight budget when i did heads . spent to much and could have bought a am set instead. oh well . i am happy with them .
030 over ,stock crank and rods (good rod bolts)
balanced rotating
kb flats (9.8 to 1 comp.)
comp cam 456/456 dur 268
weiland stealth
heads- ported, 3 angle ,all comp componants, manley valves ,
i need a carb. (suggestions)
rebuilt c6 , 3 55 2500 stall converter.
030 over ,stock crank and rods (good rod bolts)
balanced rotating
kb flats (9.8 to 1 comp.)
comp cam 456/456 dur 268
weiland stealth
heads- ported, 3 angle ,all comp componants, manley valves ,
i need a carb. (suggestions)
rebuilt c6 , 3 55 2500 stall converter.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
What are the full cam specs? I can do a dyno sim of it but I'd be guessing about the heads and my guess is those heads don't even flow 200cfm. You would definitely gain from aftermarket heads.
Postmaster
Joined: Mar 2005
Posts: 2,949
Likes: 6
From: Earth
The Comp cam in the 300 I'm building now has the same lift and duration.
So yeah, a set of AFR heads would probably give you another 50+hp. But you wouldn't notice much difference below 4,000-5,000 rpm. How often do you flog it past 5,000 rpm?
I'm partial to Edelbrock carbs because they generally run right out-of-the-box, are simple and easy to tune if needed. Unless you're spanking it a 600cfm is plenty.
So yeah, a set of AFR heads would probably give you another 50+hp. But you wouldn't notice much difference below 4,000-5,000 rpm. How often do you flog it past 5,000 rpm?
I'm partial to Edelbrock carbs because they generally run right out-of-the-box, are simple and easy to tune if needed. Unless you're spanking it a 600cfm is plenty.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
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Lead Driver
Joined: Jul 2011
Posts: 8,679
Likes: 191
From: On the Edge of the Desert
Hey con, if I give you the full specs on my engine could you run a sim for me? I'm estimating It makes around 330-350 hp and somewhere around 400lb-ft. But don't have any real clue.
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