2 454 Marine 385hp engines Pulled to swap in 572's 3000.00 obo
10-20-2010, 11:09 PM
#11
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jeff I am pretty sure the 87 mag was 330hp oval port heads cast crankshaft. the 88/89/90/91 454 mag. was the same as the 454 370hp of 87 and earlier that came with the trs set ups. so the 88 and up was rectangle heads forged crankshaft . differents between the 420 and the 365/370 was the gill exhaust holley 800 and maybe but not sure the cam. the 454 330hp was called the 7.4 from 88 up. I remember this from my friends baja dealership. my 88 had the 330hp 7.4 and they had two 250 sports with the mag 365hp 454 plus a friend had a sutphen87/88 with trs 454 370hp way back then
. I will tell the guy with the sutphen he is still looking for motors. JEFF I tried very had to get him to buy yours last year the 496s they were sweet. later art ps is that for the pair I take it 3000gs. since they should be gone threw.
. I will tell the guy with the sutphen he is still looking for motors. JEFF I tried very had to get him to buy yours last year the 496s they were sweet. later art ps is that for the pair I take it 3000gs. since they should be gone threw.The good forged 454's are great pieces. With a little comp upgrade, and a good exhaust, you can get a little wild with the cams and make good power. I have done over 500HP with one and not gone out of the range of operability.
By the way, the 496's are actualy going into my Nortech V hull right now.
10-21-2010, 02:06 AM
#12
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Those are Gen V 454 mags/365HP with good internals.
Forged crank and pistons. The stock flat tappet cam is .510/510, 224/224, 115.5 lobe sep.
If that is 3k for the pair, they are a great deal.
Forged crank and pistons. The stock flat tappet cam is .510/510, 224/224, 115.5 lobe sep.
If that is 3k for the pair, they are a great deal.
Last edited by Griff; 10-22-2010 at 12:36 AM.
10-21-2010, 10:27 AM
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There is a solid flat and a hydralic flat. Merc would have used the hydraic flat.
10-21-2010, 07:28 PM
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I might be mistaken, but I thought these were the ones that had cast internals like the 330's, but had rectangle heads and cast internales.
The good forged 454's are great pieces. With a little comp upgrade, and a good exhaust, you can get a little wild with the cams and make good power. I have done over 500HP with one and not gone out of the range of operability.
By the way, the 496's are actualy going into my Nortech V hull right now.
The good forged 454's are great pieces. With a little comp upgrade, and a good exhaust, you can get a little wild with the cams and make good power. I have done over 500HP with one and not gone out of the range of operability.
By the way, the 496's are actualy going into my Nortech V hull right now.
10-22-2010, 12:01 AM
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10-22-2010, 01:27 PM
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I wish I could get them... then my boat would not be for sale....
heres a bump for ya!
Johnny
trade ya for a jet boat...(up or down with or with out motor...)
heres a bump for ya!
Johnny
trade ya for a jet boat...(up or down with or with out motor...)
Last edited by 42johnny; 10-22-2010 at 01:29 PM.
