Cost of 454 to 540 upgrade?
02-01-2008, 05:13 PM
#51
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oh, and we got two 572's from scott at dynoflo last year and the engines have run flawless at 700hp. He could build them in his closet if he wanted to as long as the run like these babies do.
02-01-2008, 05:24 PM
#52
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Let me know if you have probs putting the tabs & pumps on and i'll get the manuel from Mell Riggs
ROCK ON !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
02-01-2008, 06:23 PM
#54
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starting to think all this is just way above my head.. I absolutely love my boat so I dont want to sell it and try to find something that will run 90 just to get that speed. Plus I could get about $33k for my boat (if i sat on it for 2 years with a for sale sign cause of this stupid market).By the time i found something that has what I wanted and for that price, itd still be a fixer upper i think..
So there is really NOTHING I can do to these motors to bump the horsepower? Maybe Ill just spend the money on rebuilding the motors and dressing them up a little and be happy with my 70mph and reliability.
So there is really NOTHING I can do to these motors to bump the horsepower? Maybe Ill just spend the money on rebuilding the motors and dressing them up a little and be happy with my 70mph and reliability.
02-01-2008, 06:25 PM
#55
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02-01-2008, 06:45 PM
#56
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Question....
Not that it makes all THAT much difference, but he should be running a Gen V 330. I've got the same motors, in fact I think my boat was buit right after or shortly after his. I've been looking into the same project and I thought I read that the Gen V motors all came with 4 bolt mains??
Water.....do a search...there's a couple threads on here from a few years ago about hopping up the 7.4's....it IS possible. I think KAMMA posted a bunch of stuff about how to do it at a reasonable price for pretty close to 500hp.
Not that it makes all THAT much difference, but he should be running a Gen V 330. I've got the same motors, in fact I think my boat was buit right after or shortly after his. I've been looking into the same project and I thought I read that the Gen V motors all came with 4 bolt mains??
Water.....do a search...there's a couple threads on here from a few years ago about hopping up the 7.4's....it IS possible. I think KAMMA posted a bunch of stuff about how to do it at a reasonable price for pretty close to 500hp.
02-02-2008, 03:32 AM
#57
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02-02-2008, 08:41 AM
#58
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By the time you upgrade your 454s your gonna have about $7500 in parts plus machine work plus a fee for moritz to put it together if you dont know how. guessing $3500 for machine work and assembly. And you still have cast crank, stock rods.
Pistons, roller cams, roller lifters, timing chain, pushrods, gasket set, bearings, rings, square ports heads, intake, carb.
I would buy 2 crate motors and be done. Jegs has complete World 509 540hp 575ft/lbs. for $8899.
Sell your 454s.
Pistons, roller cams, roller lifters, timing chain, pushrods, gasket set, bearings, rings, square ports heads, intake, carb.
I would buy 2 crate motors and be done. Jegs has complete World 509 540hp 575ft/lbs. for $8899.
Sell your 454s.
Last edited by 5050; 02-02-2008 at 08:48 AM.
02-02-2008, 08:52 AM
#59
Banned
By the time you upgrade your 454s your gonna have about $7500 in parts plus machine work plus a fee for moritz to put it together if you dont know how. guessing $3500 for machine work and assembly. And you still have cast crank, stock rods.
Pistons, roller cams, roller lifters, timing chain, pushrods, gasket set, bearings, rings, square ports heads, intake, carb.
I would buy 2 crate motors and be done. Jegs has complete World 509 540hp 575ft/lbs. for $8899.
Sell your 454s.
Pistons, roller cams, roller lifters, timing chain, pushrods, gasket set, bearings, rings, square ports heads, intake, carb.
I would buy 2 crate motors and be done. Jegs has complete World 509 540hp 575ft/lbs. for $8899.
Sell your 454s.
02-02-2008, 09:00 AM
#60
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Question....
Not that it makes all THAT much difference, but he should be running a Gen V 330. I've got the same motors, in fact I think my boat was buit right after or shortly after his. I've been looking into the same project and I thought I read that the Gen V motors all came with 4 bolt mains??
Water.....do a search...there's a couple threads on here from a few years ago about hopping up the 7.4's....it IS possible. I think KAMMA posted a bunch of stuff about how to do it at a reasonable price for pretty close to 500hp.
Not that it makes all THAT much difference, but he should be running a Gen V 330. I've got the same motors, in fact I think my boat was buit right after or shortly after his. I've been looking into the same project and I thought I read that the Gen V motors all came with 4 bolt mains??
Water.....do a search...there's a couple threads on here from a few years ago about hopping up the 7.4's....it IS possible. I think KAMMA posted a bunch of stuff about how to do it at a reasonable price for pretty close to 500hp.
Yes, the Gen V's are 4 bolt mains - see http://www.mortec.com/bbc.htm
I took my '94 454 Gen V blocks and stock cranks to the local shop and he wants to stroke them - 4.25 w/6.385 rods, but i've read some scary stuff about piston wobble and oil ring failures and engine life reduction with this configuration. I'm leaning towards stock cranks - rods - JE/SRP 9.3-5:1and an HR cam kit (mild-medium), although I love the idea of 496's..
