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Old 02-04-2008, 07:04 PM
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400 build ideas?

I just scored a 400sb truck motor out of the junkyard its a running motor I was looking into a 427 stroker crank kit for it with some bigger heads this motor is going into a lowered 67' C10 with a 200-4R and 3.73 gears its for weekend fun so im not really worried about daily driving I just wanna get an idea on what to do with this truck

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Old 02-05-2008, 03:16 PM
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im not really worried about the money part but what kind of heads and cam should I run?
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Old 02-05-2008, 10:52 PM
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Considering that its a lowered truck and you'll never need high RPM power I would suggest Vortecs, AFR's will give you more power, but in a lowered truck torque matters more and the Vortecs and AFR's are pretty close there- too close to justify the added cost of AFR's in my opinion. Pick a cam with about 215/220 degrees duration @.050 and a LSA of about 106 and slap on a 6-71 blower overdriven just a tad. It'll make one mean rodding engine, with plenty of grunt to burn up all the tires you can afford. It will love gas though, it'll drink it like a fish drinks water.

Just thinkin about that engine makes me drool.
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Old 02-06-2008, 02:43 AM
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Im not sure I was thinking of running a little cr with it to make like 10.5:1
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Old 02-06-2008, 08:17 AM
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Quote:
Originally Posted by ap72
Considering that its a lowered truck and you'll never need high RPM power I would suggest Vortecs, AFR's will give you more power, but in a lowered truck torque matters more and the Vortecs and AFR's are pretty close there- too close to justify the added cost of AFR's in my opinion. Pick a cam with about 215/220 degrees duration @.050 and a LSA of about 106 and slap on a 6-71 blower overdriven just a tad. It'll make one mean rodding engine, with plenty of grunt to burn up all the tires you can afford. It will love gas though, it'll drink it like a fish drinks water.

Just thinkin about that engine makes me drool.
2115/220 is just aboove a stock cam and a blower with a 106 LSA will not work either to much over lap 114 is where you may want to start.

This engine in the link has 232 @.050 and 501 on the torque is pretty good for a 383. and with same package and Vortec heads the numbers on the dyno were very similar.
http://www.chevelles.com/forums/show...highlight=DYNO
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Old 02-06-2008, 10:32 AM
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Are you after something mild and really driveable or something more radical?

Adam
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