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Originally Posted by Baja226sport
(Post 3269739)
I am pretty sure that besides the weight savings with aluminum they dissipate heat faster than iron so the engine will run cooler......
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Blue thunder, Tried to pm you but your box is full....
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Originally Posted by Baja226sport
(Post 3269984)
Blue thunder, Tried to pm you but your box is full....
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PM sent
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blowers
Yeah, I went that route for a few years and I'm going back to stock. I have 2 just totally redone B&M 250 blowers with snouts, belts, intakes etc... If interested let me know. They have about 5 hrs use on both of them since I removed them from my hp500 bulldogs. I was able to get around 650hp and they were fantastic but the hassle of high octane fuel was a Pain in the Ass. So, back to stock for me and 89 octane. Can send pictures of them on engines and have all receipts of recent rebuilds. They are polished. Speed
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I might be interested, what would you want for one of them?
And just curious, what is the hassle of 93 octane? It is still pump gas.... |
It has always been my understanding and experience that aluminum heads are good for an extra pound of boost since they dont absorb heat like cast iron. I have a 525SC clone which is a 454 365HP with a 177 weiand, V6 Module, no thermostat, Inconnel and SS exhaust, roller rockers, upgraded fuel pump, Nickerson 850 Holley, fuel guage and boost guage. I run 4.5lbs of boost at never lower than 4,900' elevation. From the research I have done I Assume I am running 470-490 PSHP. Aluminum heads should get me 1 lb of boost safely (20PSP) add to this a 731 Crane Roller Cam another (40-50PSHP) add to this an intercooler another (40-50PSHP) this I think would put me around 575 PSHP. If I had the same stock 454 Mag today (not back in 89 when this clone was built) I would do the same except add a cross over, MSD ignition, aluminum heads, Cam and a 250 with intercooler and I think I would be running closer to 700PSHP at 5lbs of boost with twin carbs. Bottom line more HP is exponetially More Coin.
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Originally Posted by Bodi
(Post 3270242)
It has always been my understanding and experience that aluminum heads are good for an extra pound of boost since they dont absorb heat like cast iron. I have a 525SC clone which is a 454 365HP with a 177 weiand, V6 Module, no thermostat, Inconnel and SS exhaust, roller rockers, upgraded fuel pump, Nickerson 850 Holley, fuel guage and boost guage. I run 4.5lbs of boost at never lower than 4,900' elevation. From the research I have done I Assume I am running 470-490 PSHP. Aluminum heads should get me 1 lb of boost safely (20PSP) add to this a 731 Crane Roller Cam another (40-50PSHP) add to this an intercooler another (40-50PSHP) this I think would put me around 575 PSHP. If I had the same stock 454 Mag today (not back in 89 when this clone was built) I would do the same except add a cross over, MSD ignition, aluminum heads, Cam and a 250 with intercooler and I think I would be running closer to 700PSHP at 5lbs of boost with twin carbs. Bottom line more HP is exponetially More Coin.
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Besides Whipple, who sells marine kits for SBC?
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I think you can run an automotive blower just put a marine carb on top of it. My motor was built in 88 or 89 and I don't think weiand made a marine specific blower back then.
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