383 vs 406
#1
383 vs 406
ok so im not going big block im my 3rd gen. which would be best a 383 or a 406? whats so good about a high nickel block? has anyone ever put a procharger supercharger for a carbed engine in their 3rd gen? the 383 im looking at has 560HP at the crank and the 406 (there are two of them) has 580 or 615 HP at crank. they are all within $1000 of eachother and i dont know which would be best. im looking for power and reliability and more power.
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Car: 1991 Formula
Engine: 350 firebreathing inches of Small Block Chevrolet
Transmission: A 700R4 that has trouble handling the formentioned 350.
Well the high nickel blocks cool better, And go with the 406. Sorry I can't help you with the procharger I'm more of a turbo guy. Buy if you are buying a 406 with that much horse the compression ratio is probably too high to run any boost and be worth the money.
Later, Garrett
Later, Garrett
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Car: 1991 Formula
Engine: 350 firebreathing inches of Small Block Chevrolet
Transmission: A 700R4 that has trouble handling the formentioned 350.
Originally posted by kfoley
Unless you're running race gas, then yes. 8.5:1 is the magic number for forced induction.
Unless you're running race gas, then yes. 8.5:1 is the magic number for forced induction.
Later, Garrett
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Car: 1986 Z28
Engine: 355
Transmission: th400
I'd go with the 383. over a factory block sbc 400.
The block whether it be high nickle or not of the 383, will be inherently stronger, and less likely to shift than the sbc400 motor, cools better, and typically will make more power. no steam holes to drill in the heads, less rotating mass.
for dependability i'd certainly go with the 383.
The block whether it be high nickle or not of the 383, will be inherently stronger, and less likely to shift than the sbc400 motor, cools better, and typically will make more power. no steam holes to drill in the heads, less rotating mass.
for dependability i'd certainly go with the 383.
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Car: 84 camaro Z28
Engine: 434sbc
Transmission: powerglide
Axle/Gears: moser 9" with 411 posi
406 will have a **** load of torque. i love the 400 chevy small block.
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Car: 1989 Iroc Z L98
Originally posted by CamaroFreak406
You can still run the procharger but you aren't going to gain much horse at all (maybe 20 - 30 max.) not worth the investment.
Later, Garrett
You can still run the procharger but you aren't going to gain much horse at all (maybe 20 - 30 max.) not worth the investment.
Later, Garrett
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