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  #21  
Old 12-14-2021, 06:59 PM
tom s tom s is offline
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HP is in the heads,dont think it had much in head or cam.Tom

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Old 12-14-2021, 07:07 PM
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HP is in the heads,dont think it had much in head or cam.Tom
Agree, as I mentioned in my first post, not enough head for an engine with that crank. I'd be more inclined to doctor the heads to appear stockish, put a stock intake on it, go for more of a sleeper look and just enjoy the torque it makes.

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Old 12-14-2021, 10:19 PM
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Cool! What cam were you using?
Duration on mine is 242-249 spec'd by me

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Old 12-14-2021, 10:25 PM
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Originally Posted by Formulajones View Post
That's what I'm talking about. For a 488 with that much compression and a bunch of "race car" stuff on it, I'm not overly impressed. It's okay, more of a torque everywhere engine with the big crank.
Ya i wasn't too impressed either, my 461 made 610tq with northwind (640tq with RPM) Power (hp/tq) is in heads/intake and that 488 seems to be lacking in that department imo.

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Old 12-14-2021, 10:53 PM
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X SEVERAL ON THE COMMENTS ABOVE.

Tom V.

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  #26  
Old 12-15-2021, 03:46 AM
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Originally Posted by Stan Weiss View Post
The difference in bore size between a 428 and 455 is only 0.030"

Stan
I understand that. I would not have chosen the std bore 428 block.
The whole build is weird. Lot of money spent on rods/pistons. Stock main caps. Junk PRW rockers. No need for a lifter bore brace, cam is puny. Heads need a lot more flow. Victor is used, not the best match. 1 3/4" headers on a 488 is a waste. Do not see the need for a V pump on a engine like this.
Guy built a tq monster. But done right he could have had the same tq and a lot more HP.
Maybe he wanted a tame 625lbs tq, he did get that.

  #27  
Old 12-15-2021, 07:49 AM
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This engine would be perfect in a big heavy car, without a lot of gear.

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Old 12-15-2021, 09:40 AM
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Quote:
Originally Posted by Stan Weiss View Post
The difference in bore size between a 428 and 455 is only 0.030"

Stan
True but a .030 or a .060 455 block would have been better since you are still dealing with a 31/4" main.

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  #29  
Old 12-15-2021, 10:27 AM
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lotta complaints about an engine most guys will kill for! reminds me of a bunch of nerds sitting around talking about how the girl their buddy just picked up isn’t that hot, while they go home and play video games and he gets some affection!

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Old 12-15-2021, 10:40 AM
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lotta complaints about an engine most guys will kill for! reminds me of a bunch of nerds sitting around talking about how the girl their buddy just picked up isn’t that hot, while they go home and play video games and he gets some affection!
Very true...
If you gave me that engine I would surely take it. If I was buying it at the right price...I would buy it.

But, If I were to build it from scratch(or pay someone to build it) I surely would have gone a different way.

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  #31  
Old 12-15-2021, 11:41 AM
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Originally Posted by FrankieT/A View Post
True but a .030 or a .060 455 block would have been better since you are still dealing with a 31/4" main.
Maybe he already had the 428 block, if so why sell it and look for a good 455 block

For 488 ci with a 4.5" stroke he needed a bore of 4.155" or 0.035" over on the 428 block.

Let say he took a 455 0.035" over, he now has 495 ci.

How much more HP do you think it would have made?

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Old 12-15-2021, 11:54 AM
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Quote:
Originally Posted by Stan Weiss View Post
Maybe he already had the 428 block, if so why sell it and look for a good 455 block

For 488 ci with a 4.5" stroke he needed a bore of 4.155" or 0.035" over on the 428 block.

Let say he took a 455 0.035" over, he now has 495 ci.

How much more HP do you think it would have made?

Stan
Gets him closer to square...

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  #33  
Old 12-15-2021, 12:15 PM
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Gets him closer to square...
Yes it does. The bore stroke ratio goes from 0.9233 to 0.93. Neither very close to square.

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  #34  
Old 12-15-2021, 01:44 PM
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It's not a bad engine, I just see a lot of "race car" parts on an engine that isn't making "race car" power.

As I already mentioned, if it were mine, I'd doctor the heads to look stock, rip the vacuum pump and Victor intake off, swap the rocker arms, stick a stock intake/carb setup on it, some RA exhaust manifolds, and make the engine appear stock, and then enjoy all the torque it makes.

Then it would be very close to what I have in mind to build myself in the future. I probably won't be pushing 11:1 compression though.

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Old 12-15-2021, 03:25 PM
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Even on my 505 a 'worked' Performer RPM intake was a dog compared to a Victor. Unless heavy modified a iron factory intake with a 4.500 stroke combo would be big drawback! That said, Wilson Manifolds could open it up and do some extensive and expensive support for that heavy iron piece

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  #36  
Old 12-15-2021, 04:00 PM
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Originally Posted by dragracerx2813 View Post
This engine would be perfect in a big heavy car, without a lot of gear.
Like a 80 Trans Am with 308 gears?

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Old 12-15-2021, 04:54 PM
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Originally Posted by FrankieT/A View Post
Very true...
If you gave me that engine I would surely take it. If I was buying it at the right price...I would buy it.

But, If I were to build it from scratch(or pay someone to build it) I surely would have gone a different way.
I think there is something to be said for putting your money into the bottom end at first. You can always go faster with heads, cam, intake, carb changes without that much work. It's a lot more work to pull the engine out and add a forged crank or good rods!

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  #38  
Old 12-15-2021, 05:40 PM
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I put a LOT of highend parts in my engines and after it gets off a dyno or run stand it does not see 3000 RPMs!WHY?BECAUSE I WANT TO!Tom

  #39  
Old 12-15-2021, 05:46 PM
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I put a LOT of highend parts in my engines and after it gets off a dyno or run stand it does not see 3000 RPMs!WHY?BECAUSE I WANT TO!Tom
You are in a different income bracket than most of us tom. If I were you I would do the same thing.
Enjoy what you worked for the way you want to do it.

  #40  
Old 12-15-2021, 05:51 PM
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Originally Posted by i82much View Post
lotta complaints about an engine most guys will kill for! reminds me of a bunch of nerds sitting around talking about how the girl their buddy just picked up isn’t that hot, while they go home and play video games and he gets some affection!
Nah, the stroker I am building is going to rip the head off this thing. If thats a nerd then I am a nerd.
That is the thing about making one of your builds very public. Folks will give their opinions because the builder obviously wanted them to. He made it public. Have a thick skin.

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