Motor HP estimate?
12-19-2002, 06:49 PM
#1
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Motor HP estimate?
4.3l (262ci) carb motor- how many hp do you think ill make with this setup?
Thru hull and S pipe
pistons 9:1 cr
Vortec Heads
carb Holley
Edlebrock intake mani
Roller rockers
MSD ignition system
9MM plug wires
Eagle connection rods (good to 500hp says the ad)
new gaskets
hydraulic roller cam set up for the less restrictive exhaust
replace water pump w/ crossover tube
stock with underwater exhaust makes 190hp.
others ill do-
prop labbed
drive shower
?pre oiler?
and for some looks-
valve covers chrome
pulleys
any one have any ideas? What would you think i should do? any of those mods not worth while? anyone know where to find a Supercharger?
Thru hull and S pipe
pistons 9:1 cr
Vortec Heads
carb Holley
Edlebrock intake mani
Roller rockers
MSD ignition system
9MM plug wires
Eagle connection rods (good to 500hp says the ad)
new gaskets
hydraulic roller cam set up for the less restrictive exhaust
replace water pump w/ crossover tube
stock with underwater exhaust makes 190hp.
others ill do-
prop labbed
drive shower
?pre oiler?
and for some looks-
valve covers chrome
pulleys
any one have any ideas? What would you think i should do? any of those mods not worth while? anyone know where to find a Supercharger?
12-19-2002, 07:09 PM
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Are you sure you want to put all that $$ into this motor?? Man, you are talking about some serious coin. I'm not a 6 cyl guy, but I would think you may be able to get upper 200hp. That is a pure guess. From looking at the parts without any specs, I am just going off probable ratios. If you told me that run down without any particular specs for a 502, I would say about 500-525hp, or a little better than 1:1 ci/hp ratio. But without any exact numbers or having ever even owned a 6 banger (take that back, my old CJ-7 had a 258 ci straight 6), that would be my stab. I doubt any more than 300hp, and your tq may be really ****ty, I don't know.
Think long and hard about this. Why not just look for a 350mag and go from there??
Think long and hard about this. Why not just look for a 350mag and go from there??
12-19-2002, 07:34 PM
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I'm with Allan4,
Find a 350 mag(260Hp). What's this hooked up to .......an Alpha drive ? The 350 would be worth the upgrades. The 350 could easily be massaged into the low 300's for HP. You could probably safely run 330-350 HP through your Alpha.
The 377 Scorpion would be a sizeable upgrade. These put out close to 365 HP.
I know the 4.3's seem to have pretty decent power but , I think you'll be much better off with a small-8. Resale would be better with a stock motor whether it be V-6 or V-8. I'd much rather pay the extra cash for a V-8.
Good Luck
Find a 350 mag(260Hp). What's this hooked up to .......an Alpha drive ? The 350 would be worth the upgrades. The 350 could easily be massaged into the low 300's for HP. You could probably safely run 330-350 HP through your Alpha.
The 377 Scorpion would be a sizeable upgrade. These put out close to 365 HP.
I know the 4.3's seem to have pretty decent power but , I think you'll be much better off with a small-8. Resale would be better with a stock motor whether it be V-6 or V-8. I'd much rather pay the extra cash for a V-8.
Good Luck
12-19-2002, 08:00 PM
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Hyper Baja,
Look at Jegs, they have crate engines for just over $3000 complete carb to oil pan (350 cid 330 hp). I think this would be easier for you to sell later on if you decide to upgrade. Good luck with your project
Look at Jegs, they have crate engines for just over $3000 complete carb to oil pan (350 cid 330 hp). I think this would be easier for you to sell later on if you decide to upgrade. Good luck with your project
Last edited by 250 sport; 12-19-2002 at 08:03 PM.
12-19-2002, 08:06 PM
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the ZZ4 Gm motor. I have looked at the cost to put that in....
Motor
Exhaust s pipe, tips
Headers
Fuel system
mounts
flywheel
plus all the other goodies you find you have to do.
Yes it does have an alpha.
Motor
Exhaust s pipe, tips
Headers
Fuel system
mounts
flywheel
plus all the other goodies you find you have to do.
Yes it does have an alpha.
12-19-2002, 08:07 PM
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Hyper, I have the boat for you...
My dad is seriously considering selling his 1988 Baja 196 Sunsport. It was bought new by him in 88 and has been meticulously maintained. It has a 500 HP 350 in it and an Alpha SS drive with a Spinelli custom prop and a 150 HP nitrous kit and MSD electronics to control the timing when on the gas. Now for the good stuff. Naturally aspirated it runs 80 to 82 MPH on radar. On the squeeze we have gotten 86 MPH!!! Its a bow rider and the motor is under the hood. He is asking $12,000 or best offer. If you want a sweet, fast big block killer sell your boat and grab this one for a great price. 
Did I mention it also has polished CMI E-top exhaust? You won't be happy with a hopped up V-6. My opinion only!
Did I mention it also has polished CMI E-top exhaust? You won't be happy with a hopped up V-6. My opinion only!
12-20-2002, 08:17 AM
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Re: Hyper, I have the boat for you...
Originally posted by WETTE VETTE
My dad is seriously considering selling his 1988 Baja 196 Sunsport. It was bought new by him in 88 and has been meticulously maintained. It has a 500 HP 350 in it and an Alpha SS drive with a Spinelli custom prop and a 150 HP nitrous kit and MSD electronics to control the timing when on the gas. Now for the good stuff. Naturally aspirated it runs 80 to 82 MPH on radar. On the squeeze we have gotten 86 MPH!!! Its a bow rider and the motor is under the hood. He is asking $12,000 or best offer. If you want a sweet, fast big block killer sell your boat and grab this one for a great price. Did I mention it also has polished CMI E-top exhaust? You won't be happy with a hopped up V-6. My opinion only!
My dad is seriously considering selling his 1988 Baja 196 Sunsport. It was bought new by him in 88 and has been meticulously maintained. It has a 500 HP 350 in it and an Alpha SS drive with a Spinelli custom prop and a 150 HP nitrous kit and MSD electronics to control the timing when on the gas. Now for the good stuff. Naturally aspirated it runs 80 to 82 MPH on radar. On the squeeze we have gotten 86 MPH!!! Its a bow rider and the motor is under the hood. He is asking $12,000 or best offer. If you want a sweet, fast big block killer sell your boat and grab this one for a great price.
Did I mention it also has polished CMI E-top exhaust? You won't be happy with a hopped up V-6. My opinion only!
12-20-2002, 09:23 AM
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12-21-2002, 10:09 AM
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Well you have a boat and from what I have read you are willing to spend say $3000 to $5000 dollars on HP parts. Sell the boat and put the hop up money towards the new boat and there you go!!
Have you gotten a price from anyone on HP exhaust for the 4.3? My guess is it will be more expensive than units for Chevy Big Blocks. Kind of a supply and demand thing. The fact is not many people are hopping up the 4.3 and there aren't tons of options for parts out there. Maybe my dad's boat isn't the right one for you, but I really think something like that will be your most economical route. I highly recommend the Baja 196 Sport/Sunsport and the 210 Sport/Sunsport and the 19'7" Checkmate Senator. I have personally been involved with these hulls from stock to highly modified (my 210 does 98 MPH!). All three run very respectable with 350 Mags and if you find a 210 Sport or the Senator with a 7.4 they will run mid to high 60's on radar. At best your hopped up v-6 may hit 55 to 60 IF you do it right, and being a pioneer on a tight budget will make that very difficult. Hey if you look around you can find these boats I mentioned from $8000 to $15,000 in perfect condition. Red Stripe has a very nice 196 Sport he was selling. I saw it and it is a good looking boat and is still stock!! Don't take this wrong, its only my opinion!!
Good luck
Craig
Have you gotten a price from anyone on HP exhaust for the 4.3? My guess is it will be more expensive than units for Chevy Big Blocks. Kind of a supply and demand thing. The fact is not many people are hopping up the 4.3 and there aren't tons of options for parts out there. Maybe my dad's boat isn't the right one for you, but I really think something like that will be your most economical route. I highly recommend the Baja 196 Sport/Sunsport and the 210 Sport/Sunsport and the 19'7" Checkmate Senator. I have personally been involved with these hulls from stock to highly modified (my 210 does 98 MPH!). All three run very respectable with 350 Mags and if you find a 210 Sport or the Senator with a 7.4 they will run mid to high 60's on radar. At best your hopped up v-6 may hit 55 to 60 IF you do it right, and being a pioneer on a tight budget will make that very difficult. Hey if you look around you can find these boats I mentioned from $8000 to $15,000 in perfect condition. Red Stripe has a very nice 196 Sport he was selling. I saw it and it is a good looking boat and is still stock!! Don't take this wrong, its only my opinion!!Good luck
Craig
