#1  
Old 02-29-2024, 01:41 AM
Dragncar Dragncar is offline
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Nice, its going to make 650+
I think its more like 12.5-1 or so compression ratio from the number given.
Not wild about the cam, still should run great.
Sweet ride and getting a LS out of a old Pontiac is heroic IMO.

  #2  
Old 02-29-2024, 08:19 AM
DCVING DCVING is offline
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Dragncar here is my setup for compression. The cam is a older grind that I believe made it through a few hands but came from Tim Corcoran who is on this post as well. Was for a Super Stock 455 combination from what I know. The engine did go on the dyno at Len Caverly's shop in Barrington, New Hampshire. Unfortunatley we had to abort mission due to the oil pump had a stuck check ball after one of the pulls. We ran it to 5250 and it made good power at the cross over point 580hp / 530lb ft. It was climbing quick. Len thinks it should make 650+ but will need to spin to 7K or more.
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  #3  
Old 02-29-2024, 01:40 PM
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Stan Weiss Stan Weiss is offline
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Quote:
Originally Posted by DCVING View Post
Dragncar here is my setup for compression. The cam is a older grind that I believe made it through a few hands but came from Tim Corcoran who is on this post as well. Was for a Super Stock 455 combination from what I know. The engine did go on the dyno at Len Caverly's shop in Barrington, New Hampshire. Unfortunatley we had to abort mission due to the oil pump had a stuck check ball after one of the pulls. We ran it to 5250 and it made good power at the cross over point 580hp / 530lb ft. It was climbing quick. Len thinks it should make 650+ but will need to spin to 7K or more.
I don't know if that is a typeo or not. But @ 5250 580 HP is 580 torque.

Do you have a dyno sheet you can post?

Stan

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  #4  
Old 02-29-2024, 01:58 PM
DCVING DCVING is offline
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Quote:
Originally Posted by Stan Weiss View Post
I don't know if that is a typeo or not. But @ 5250 580 HP is 580 torque.

Do you have a dyno sheet you can post?

Stan
Typo, thanks for noticing. 530/530 @ 5250 @ 5600 it was 580hp and thats the highest we ran it up to. We had just finished some break-in time and this was the first hard pull. Then i had a oil pressure drop at idle so we stopped.

  #5  
Old 02-29-2024, 02:08 PM
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Stan Weiss Stan Weiss is offline
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Originally Posted by DCVING View Post
Typo, thanks for noticing. 530/530 @ 5250 @ 5600 it was 580hp and thats the highest we ran it up to. We had just finished some break-in time and this was the first hard pull. Then i had a oil pressure drop at idle so we stopped.
580 HP @ 5600 is 544 torque. Was torque still raises when you stopped the pull?

Stan

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  #6  
Old 02-29-2024, 02:12 PM
DCVING DCVING is offline
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580 HP @ 5600 is 544 torque. Was torque still raises when you stopped the pull?

Stan
I'd have to try and find the picture i took of the screen. Im pretty sure it peaked pretty close to 5400-5600 RPM. Im just going off memory...

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Old 03-04-2024, 09:32 PM
DCVING DCVING is offline
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Quote:
Originally Posted by Stan Weiss View Post
I don't know if that is a typeo or not. But @ 5250 580 HP is 580 torque.

Do you have a dyno sheet you can post?

Stan
Found the dyno sheet.
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