454worth stroking
09-13-2002, 07:53 PM
#1
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454worth stroking
i have a 79 chris craft excaliber with two 454s. i have the motors out and wanted to stroke them, but my engine builder told me he would only make them 496s. what i was wondering is it worth it for only the little bit of cubes? if anybody else has done this any info would be appreciated. thanks
09-13-2002, 09:33 PM
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454s worth stroking
he told me around 2300 to 2500 and that was for machining the block and a good forged crank,rods andpistons. i guess iwas just wondering if i would notice a big hp difference? kinda dissipointed i found some nice 540s i was going to buy, but they were tall decks and i only have about a 1/4 inch between my to inner gil manifolds. so they wont fit without a whole lota work.
09-14-2002, 01:41 AM
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why not a set or prochargers??? I fthe engeins are in decent shape. freshen them a up a bit for a few hundred bucks and put on a some small blowers. I doubt you wil be able to stroke them for $2500. A decent forged crank alone is at least $600.
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09-14-2002, 06:36 AM
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excaliber, what hp are your 454's originally. very general increases for stroking a 454 is 50hp and 50 lbs of tourqe. that very roughly figures to be 3-4 mph increase. these are very general quotes and so much depends on cylinder heads, cams, compression ratio. hp generally ranges from 500 to 600 hp.
09-14-2002, 09:29 AM
#7
(aka) Pure Adrenaline
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I went through the same thing with my Cigarette. I had 454-440hp cyclones. Not mutch more HP strokeing. Eather way you need crank,rods,pistons. so I sold the 454's and built 540's. If you find the right buyer for your 454's it almost pays for your new blocks and heads. Good Luck 
09-14-2002, 06:25 PM
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speel chekk this fokker!
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well the forged crank that went into my new engine cost about $600 from Bruce Dudley. its a GM 1054 nitrited crank according to the biuld sheet. I sadi i neede d forged crank and to use his best judgement as to wich one. I was expecting the 454 mag crank that was in the engein but due to some hairline cracks it needed to be replaced.
As for other cranks see attached:
As for other cranks see attached:
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09-14-2002, 06:27 PM
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both of these are from the Summit Catalog. Perhaps they aren't top of the line but I would be willing to call them decent. And about $600
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