Inexpensive 454 mag performance up grades
#21
Now I've gone and gotten carried away with spending someone else's money for them. And I have not mentioned all the little gotcha's like head gaskets, timing chain, oil pump, bigger oil cooler and lines, etc. That's why I suggested keeping the hatch closed and enjoying the boat for what it is.
#22
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#23
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Have a beautiful 89 power play with a bone stock 330 HP 454 Mag, boat runs flawlessly top speed of 60 MPH .. yeah.. only 60 ( So as winter approaches I want to see what we can produce for hp gains, my thoughts are a "good cam" headers maybe a intake and carb...? I know their are MANY other directions to go, but the wife has a strangle hold on the budget... so any ideas what is a good cam .. intake.... carb for me ? any other ideas floating around out their?
thanks in advance Steve
thanks in advance Steve
3pointstar
#24
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Well... that sucks! I am a Harleys rider by nature and a HP chaser as well, so yea I know speed is not cheap, nearly 10K in a Harley 120 inch to make 130 HP ... but god what a blast to ride !!! Bought this boat last year and thought BB chevys were cheaper to make HP with.. looks like I was WRONG! lol Oh well.. I got a job... I was hoping (don't laugh now) to try to touch 80 mph with this powerplay, have a buddy with a 22' checkmate same year as mine with a small blower on his 454L yeah cam.... roller's headers etc... runs 79.5 on GPS.. looks like maybe a repower is the way to go......? how much work and expense is it to put a newer 496 HO in an older boat like mine again 1989 454 Bravo 1?
#25
Well... that sucks! I am a Harleys rider by nature and a HP chaser as well, so yea I know speed is not cheap, nearly 10K in a Harley 120 inch to make 130 HP ... but god what a blast to ride !!! Bought this boat last year and thought BB chevys were cheaper to make HP with.. looks like I was WRONG! lol Oh well.. I got a job... I was hoping (don't laugh now) to try to touch 80 mph with this powerplay, have a buddy with a 22' checkmate same year as mine with a small blower on his 454L yeah cam.... roller's headers etc... runs 79.5 on GPS.. looks like maybe a repower is the way to go......? how much work and expense is it to put a newer 496 HO in an older boat like mine again 1989 454 Bravo 1?
#26
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Have a beautiful 89 power play with a bone stock 330 HP 454 Mag, boat runs flawlessly top speed of 60 MPH .. yeah.. only 60 ( So as winter approaches I want to see what we can produce for hp gains, my thoughts are a "good cam" headers maybe a intake and carb...? I know their are MANY other directions to go, but the wife has a strangle hold on the budget... so any ideas what is a good cam .. intake.... carb for me ? any other ideas floating around out their?
thanks in advance Steve
thanks in advance Steve
#28
Powerquest502
just finishing the same project you outlined. Here are my experiences.
I think all of the advice here is sound. It really depends on your personal situation.
Had stock motor 454/330 replaced
exhaust $ 1,000
intake $ 450
heads, with roller rockers $ 1,250
mostly used parts here on the forum lots of great quality parts at great prices everything always exactly as discussed.
Can't tell you the diference yet as still in process. Just saying. You are correct about high hp harleys i just finished my 100+ hp sportster.
Good luck
just finishing the same project you outlined. Here are my experiences.
I think all of the advice here is sound. It really depends on your personal situation.
Had stock motor 454/330 replaced
exhaust $ 1,000
intake $ 450
heads, with roller rockers $ 1,250
mostly used parts here on the forum lots of great quality parts at great prices everything always exactly as discussed.
Can't tell you the diference yet as still in process. Just saying. You are correct about high hp harleys i just finished my 100+ hp sportster.
Good luck
#29
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Love these forums.. so much great advise, in the Harley world we have "Harleytechtalk" same type website ... Looks like I have some home work to do and decisions to make ..... Thanks for all the ideas and advise...
I am sure it wont be long I will be asking more questions..LOL
I am sure it wont be long I will be asking more questions..LOL