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Reefmoto

  • Karma: +0/-0
Re: motor is at the machinists, need advice
« Reply #25 on: January 26, 2016, 07:03:26 AM »
See my comment above, the 049's are honestly probably better for a jet boat engine.

Ok I'll see if I can source any closer than Santa clarita...should have just bought a 502 to begin with
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Flusher

  • Karma: +84/-0
Re: motor is at the machinists, need advice
« Reply #26 on: January 26, 2016, 07:37:17 AM »
Ok I'll see if I can source any closer than Santa clarita...should have just bought a 502 to begin with

That's still an option!

You will get the most return parting out your existing engine parts.

Good luck,

Joe
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"I want to roll with my brother Joe" - Joe Bateman - January 29, 1950 ~ November 27, 2013

Reefmoto

  • Karma: +0/-0
Re: motor is at the machinists, need advice
« Reply #27 on: February 01, 2016, 07:34:51 PM »
Well decided to buy new dart cast heads, also bought some forged dome top pistons, forged rods and bought a forged 4"stroke crank. Didn't want to do a stroker crank because I would have to do more machine work. Now I'm searching for thru transom  tubular header, and a eddlebrok Victor intake mani single plane. Only thing I'm keeping is carb and possibly headers... cam is to be determined once I decide on headers.
« Last Edit: February 01, 2016, 07:37:10 PM by Reefmoto »
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obnoxious001

  • Karma: +4/-1
Re: motor is at the machinists, need advice
« Reply #28 on: February 01, 2016, 07:37:24 PM »
Well decided to buy new dart cast heads, also bought some forged dome top pistons and bought a forged 4"stroke crank. Didn't want to do a stroker crank because I would have to do more machine work. Now I'm searching for thru transom  tubular header, and a eddlebrok Victor intake mani single plane.

Arg, wish you would have checked with me first, most GM 4 bolt blocks have enough clearance for a 4.250" stroke crank with H beam rods, no problem.  Once you are buying new stuff, cost is the same, but you gain cubic inches.
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Reefmoto

  • Karma: +0/-0
Re: motor is at the machinists, need advice
« Reply #29 on: February 01, 2016, 08:55:32 PM »
Arg, wish you would have checked with me first, most GM 4 bolt blocks have enough clearance for a 4.250" stroke crank with H beam rods, no problem.  Once you are buying new stuff, cost is the same, but you gain cubic inches.

Really, not to late... but at the same time I'm getting a smoking deal on a forged 4"crank ($200)
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obnoxious001

  • Karma: +4/-1
Re: motor is at the machinists, need advice
« Reply #30 on: February 01, 2016, 08:58:40 PM »

Really, not to late... but at the same time I'm getting a smoking deal on a forged 4"crank ($200)

OK, that's a good deal, but as I said, I put lots of them together, only one I had to do some grinding on was a 2 bolt block.
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Reefmoto

  • Karma: +0/-0
Re: motor is at the machinists, need advice
« Reply #31 on: February 01, 2016, 09:12:40 PM »
OK, that's a good deal, but as I said, I put lots of them together, only one I had to do some grinding on was a 2 bolt block.

I'll look into stroker crank, but it's hard to pass up a 200 dollar forged crank... maybe I'll throw some nitrous on it to make up for non stroker
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obnoxious001

  • Karma: +4/-1
Re: motor is at the machinists, need advice
« Reply #32 on: February 01, 2016, 09:21:56 PM »
I'll look into stroker crank, but it's hard to pass up a 200 dollar forged crank... maybe I'll throw some nitrous on it to make up for non stroker

All things being equal, on a pump gas engine you may only see about 40 HP difference for the difference in cubic inches.
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Flusher

  • Karma: +84/-0
Re: motor is at the machinists, need advice
« Reply #33 on: February 01, 2016, 09:24:52 PM »
I'll look into stroker crank, but it's hard to pass up a 200 dollar forged crank... maybe I'll throw some nitrous on it to make up for non stroker

What crankshaft is it?  Are the journals standard or undersized?  Are they polished and ready to run?

Reason I ask is, you could probably turn a little profit to help finance your build.

Then throw the nitrous at it!

Good luck

Joe
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"I want to roll with my brother Joe" - Joe Bateman - January 29, 1950 ~ November 27, 2013

Flusher

  • Karma: +84/-0
Re: motor is at the machinists, need advice
« Reply #34 on: February 01, 2016, 09:31:35 PM »
Well decided to buy new dart cast heads, also bought some forged dome top pistons, forged rods and bought a forged 4"stroke crank. Didn't want to do a stroker crank because I would have to do more machine work. Now I'm searching for thru transom  tubular header, and a eddlebrok Victor intake mani single plane. Only thing I'm keeping is carb and possibly headers... cam is to be determined once I decide on headers.

Sounds like a nice build.  I do hope you are not holding it back by limiting compression.

Too much compression and you have high operating expenses or risk rattling it to death.  But it is no fun driving low compression pig.
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"I want to roll with my brother Joe" - Joe Bateman - January 29, 1950 ~ November 27, 2013

Reefmoto

  • Karma: +0/-0
Re: motor is at the machinists, need advice
« Reply #35 on: February 01, 2016, 10:42:19 PM »


What crankshaft is it?  Are the journals standard or undersized?  Are they polished and ready to run?

Reason I ask is, you could probably turn a little profit to help finance your build.

Then throw the nitrous at it!

Good luck

Joe

I have good help now, eagle crank needs polish... I'm selling everything else, stock pistons and rods, stock cast crank that has been turned and ready to go, peanut port heads and my eddlebrok  qjet rpm intake mani
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GT Jets

  • Karma: +192/-0
Re: motor is at the machinists, need advice
« Reply #36 on: February 01, 2016, 11:15:08 PM »

I have good help now, eagle crank needs polish... I'm selling everything else, stock pistons and rods, stock cast crank that has been turned and ready to go, peanut port heads and my eddlebrok  qjet rpm intake mani

Hit me with a pm with a list of what you got and what you want for it.

Thanks.

GT
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
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If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

TEAMSDSU

  • Karma: +1/-0
Re: motor is at the machinists, need advice
« Reply #37 on: February 21, 2016, 09:03:03 AM »
Do we have any pictures posted?

Shawn
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