Iam selling my 2 502s Fully dressed because i want bigger they have Merlin heads, crower cams port polished heads and intake 850 proform carbs stainless marine headers the boat runs 84 with them with 30p 4 blade asking 12,000 for the pair fully dressed or a trade for some big blocks

Who did the porting on the heads ?

I do not know off hand I can find out

KMP preformance

why are you trading for other big blocks ?

Putting blower motors in

Empty your box

What boat did you have these in to get 84 out of it? What RPM's were you spinning?

Boss 302 5200

You need to list more details on the engine. Your price seems fair but list the specs on the cam, what merlin heads, what intake, rockers, lifters, pistons, what is the compression ratio. All of these details are important and will help you move them. Also spend some time and use periods and comma's. Good luck with the sale.