502 rebuild

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11-03-2018 | 11:09 PM

#51

Crude Intentions

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Joined: Mar 2012

Posts: 4,189

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From: Cape coral, FL

This is the exhaust system in that build. Bar none best manifold setup out there. Only long runner style and will be mandatory for those power numbers. Plus Bill is a great guy to deal with.

Thunder-N-Lightning Cast Aluminum Exhaust Headers :: Thunder & Lightning Headers :: Exhaust Systems :: Diamond Performance Parts

11-04-2018 | 11:04 AM

#52

92Cole

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From: California

Damn those things look sick !!!😳

11-04-2018 | 11:55 AM

#53

getrdunn

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Joined: Feb 2009

Posts: 8,356

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From: NW Michigan

If I had to purchase new exhaust/headers those are the only ones I'd consider. They are difficult to find used but if you stay on it you can run across a set here and there.

11-04-2018 | 12:00 PM

#54

getrdunn

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From: NW Michigan

Quote:

Originally Posted by F-2 Speedy

I ran 305's on my 540's they made 630hp through a stock 500 EFI TB and plenum.

I'd really like to try the 300 oval port magnums on a 540 plus build someday. There was an article a while back I posted link to with them on a 565 and it was a true monster.

11-04-2018 | 08:32 PM

#55

endeavour32

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Joined: May 2009

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From: Chicago, IL; Onekama, MI

Quote:

Originally Posted by getrdunn

If I had to purchase new exhaust/headers those are the only ones I'd consider. They are difficult to find used but if you stay on it you can run across a set here and there.

They're not that expensive new, IMO not worth the hassle to find used. It took me two years to find two sets. Since, I've seen only one set come up for sale, and they were one of my old sets, lol.

I've ran these on three boats, for an N/A application, there is nothing better.

02-23-2019 | 07:27 PM

#56

92Cole

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Joined: Oct 2018

Posts: 36

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From: California

Looking for some clarity on oil bypass vavles do you plug them or run 30 psi bypass. So many different discussions on it but they all seem to lead in circles.