So The Hell With It, Rebuilding 502, Need Some Direction
#1
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So The Hell With It, Rebuilding 502, Need Some Direction
My last post was a oiling issue, I some what figured out the issue thanks to everyones help from OSO. Now what I'm doing is pulling the engine, and vatting it, followed up with a rebuild. (bearing, rings ect.....) So what my question is, my engine is a roller motor with fuel injection. I'm wanting to run a better cam, but nothing that I have to worry about reversion if my exhaust cracks, just want to make more power. I have searched best 502 mods on here and the threads were pretty dated. My question is what are some proven combinations. with or without FI. I cant let the build get out of hand financially, so I'm gonna stay hyd roller, not going to solid. I would like to see 500Hp.
I currently have a pretty stock 502 with rectangle ports, the heads have been slightly ported with a 2.25 valve. I also have CMI exhaust.
I live less than a mile from summit racing in Arlington, and I'm going to try to have this thing back in the boat in weeks. I do not have time to order a custom cam, So I'm looking for something off the shelf. I do like the idea of have FI, but I know that limits me. Any help would be awesome.
Also I'm leaving the bottom end stock unless it has to be bored.
I currently have a pretty stock 502 with rectangle ports, the heads have been slightly ported with a 2.25 valve. I also have CMI exhaust.
I live less than a mile from summit racing in Arlington, and I'm going to try to have this thing back in the boat in weeks. I do not have time to order a custom cam, So I'm looking for something off the shelf. I do like the idea of have FI, but I know that limits me. Any help would be awesome.
Also I'm leaving the bottom end stock unless it has to be bored.
#3
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I really didn't want to bore it unless I had too. I have been searching for blocks and it hasn't been very successful. do you know the bore limits on a 502? figured unless necessary I would preserve as much life of the block as I can. if it makes that big of difference then I might go ahead.
#4
21 and 42 footers
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Lots of people bore 500EFI's out to be 540's (or 555/565). I did a pair years ago but spent ALOT of money on other changes too. The problem will be the plenum, it's just going to let enough air in to get to/over 500hp. the other problem becomes torque. 540ci can make more tq than bravo drives really like. Although that hasn't stopped very many of us! LOL
#5
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Lots of people bore 500EFI's out to be 540's (or 555/565). I did a pair years ago but spent ALOT of money on other changes too. The problem will be the plenum, it's just going to let enough air in to get to/over 500hp. the other problem becomes torque. 540ci can make more tq than bravo drives really like. Although that hasn't stopped very many of us! LOL
#6
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If you all ready have 2.25 intake valves and good exhaust, contact Tyler Crockett. He has a known combination with custom cam,springs to match, and a reprogram for your ECM which he can do. Oh and an adjustable fuel regulator. Should put you right at 500hp. He is in Michign, good dude, knows his stuff.
#7
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I'm assuming yours is a Mag with fuel injection.?
#8
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#9
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810-324-2720
#10
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iTrader: (1)
I really didn't want to bore it unless I had too. I have been searching for blocks and it hasn't been very successful. do you know the bore limits on a 502? figured unless necessary I would preserve as much life of the block as I can. if it makes that big of difference then I might go ahead.
Here is a good read,
502 overbore, how far can it go?