502 to 540's
#1
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502 to 540's
I've got a pair of 1995 502 stock motors with just shy of 700 hours on them. When I have them refreshed I want to make more power. What is a good ball park figure to getting them to 540's and keeping them naturally aspirated?
#2
21 and 42 footers
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If they are the MPI motors you'll have to ditch all that and go carbs.....just no way to get enough air through the 502 plenum (I had the same problem when turning my 500EFI's into 540's)
Compared to a re-fresh you'll also need: Machine work will be more, crank/rods/pistons/cam. If your boring it then you'll need head "work" at minimum if not new heads. Then carb/intake/ignition if replacing an MPI system.
Compared to a re-fresh you'll also need: Machine work will be more, crank/rods/pistons/cam. If your boring it then you'll need head "work" at minimum if not new heads. Then carb/intake/ignition if replacing an MPI system.
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#8
21 and 42 footers
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While I think your close on parts, the way I read his post he's paying someone to do the work.......Labor is going to be another 2K
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Hope your drive is in good condition.
#10
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Wow , nothing like discouraging a brother . Who sells the best balanced 540 rotating assembly for the best price . My 500 H.P. wants to be a 540 when it grows up !! Can you say RM Builder !! Don't mean to hijack .