Offshoreonly.com - 500HP top end in a 502 MAG

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farmo83

12-06-2014 06:57 AM

500HP top end in a 502 MAG

Would the HP 500 Heads(with the bigger valves) and cam do any good in a 502MAG? The MAG already has upgraded exhaust if that would be an issue.

F-2 Speedy

12-06-2014 07:34 AM

I think you will see little performance change as far as mph, should also remap the ecm if its MPI

the deep

12-06-2014 09:12 AM

Quote:

Originally Posted by farmo83 (Post 4230832)

Would the HP 500 Heads(with the bigger valves) and cam do any good in a 502MAG? The MAG already has upgraded exhaust if that would be an issue.

I will be selling a complete HP500 top end soon should you decide to go that route . Stock carb is a Stage V by Nickerson .

ezstriper

12-06-2014 09:19 AM

need to do heads(with new valve springs/rockers) cam, intake/carb, exhaust to make work correctly, heads alone on a EFI not worth it

Griff

12-06-2014 11:25 AM

The bottom ends on the carbed 500hp and carbed 502mag are the same.
The 500EFI has better rods.

sutphen 30

12-06-2014 05:14 PM

Quote:

Originally Posted by farmo83 (Post 4230832)

Would the HP 500 Heads(with the bigger valves) and cam do any good in a 502MAG? The MAG already has upgraded exhaust if that would be an issue.

if carbed ,yes
if mpi,,then yes after remap.

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