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Forum: Swap Shop

02-19-2013, 09:43 PM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

SOLD pending payment

SOLD pending payment

Forum: Swap Shop

02-16-2013, 10:10 AM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

Yes for 4150 carb. I have 2 of the intakes. They...

Yes for 4150 carb. I have 2 of the intakes. They are listed on here as well. Both have some corrosion around the thermostat neck and water ports but came off running engines and did not leak. I...

Forum: Swap Shop

02-16-2013, 08:24 AM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

From what I have found out Spyder performance...

From what I have found out Spyder performance was/is in New york or NJ cant remember which. The owner passed and Im not sure if business kept on going or not as I didnt have the work done initially. ...

Forum: Swap Shop

02-15-2013, 06:31 PM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

Alot more than just bolting on a 500 efi intake...

Alot more than just bolting on a 500 efi intake and going boating.

Forum: Swap Shop

02-15-2013, 05:33 PM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

No I dont have any EFI. IMO your wasting a lot of...

No I dont have any EFI. IMO your wasting a lot of money for no HP. Put a good intake and carb on it and go.

Forum: Swap Shop

02-15-2013, 01:41 PM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

I dont have the flow numbers but yes they do flow...

I dont have the flow numbers but yes they do flow more rthe heads made 583 hp on HP 500s with 731 cam. They have/better than the 502 mpi heads. they also have ss intake and inconel ex valves.

Forum: Swap Shop

02-15-2013, 01:39 PM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

I dont have the flow numbers but the heads made...

I dont have the flow numbers but the heads made 583 hp on HP 500s with 731 cam. They have ss intake and inconel ex valves.

Forum: Swap Shop

02-15-2013, 07:38 AM

Replies: 15

HP 500 heads

Views: 1,385

Posted By Cobra100+

HP 500 heads

1 pair of heads off a HP500. Ported by Spyder performance. About 50 hrs on springs and all. SS intake and Inconel ex valves. Set up for roller cam 640 lift. $500 + shipping.

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