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Forged 383 Crankshaft

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Old 02-19-2005, 08:07 PM
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Car: 1988 GTA
Engine: 350 TPI
Transmission: TH350
Forged 383 Crankshaft

Who makes a forged externally balanced 383 crankshaft for a 1 piece rear main?
I've been looking for one forever and don't know if they exist.
I want to externally balanced because I've heard its just a lot easier then internally.
Thanks
Old 02-19-2005, 08:47 PM
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doc
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Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
Just go with the internally balanced crank with 1pc rear main seal. For the money, the Callies Dragon Slayer is very highly thought of.
Old 02-19-2005, 09:03 PM
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Car: 1992 Camaro RS
Engine: 383 w/Holley Stealth Ram
Transmission: Pro-built 700R4
Axle/Gears: 3.73
I just got a whole assemble from EAGLE

Eagle 383 internally balanced assembly with 6.0 inch rods and SRP pistons $1200. part number 103523750L works awesome just remeber to take the weight off the lat model fly wheel. No vibration. I had to do some minor machining on the block maybe 1/16 near the filter and 4 spots on the drivers side where the rods came up. very happy with my setup. look at my cardomain page for pictures and info on what i have. good luck
Old 02-19-2005, 09:36 PM
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Car: 1988 GTA
Engine: 350 TPI
Transmission: TH350
I thought about a rotating assembly package, but none of the ones I've found have 5.7 H beam rods and forged pistons.
From what I've heard from a lot of people is that I should go with 5.7" rods because I'll be using a lot of nitrous.
Old 02-19-2005, 10:59 PM
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Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
lunati and callies makes great cranks from what i heard

GM's crank is 3.8 inch instead of the normal 3.75 but its really expensive at 1000bucks. not sure why its expensive compared to their other 350 cranks.
Old 02-20-2005, 09:38 AM
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Car: 06 Trailblazer SS
Engine: 6.0 LS2
Axle/Gears: 4.10
Check out http://www.speedomotive.com/ They seem like a good place. Awsome Tech articles also.
Old 02-20-2005, 10:37 AM
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Car: 88 Camaro <--hope to get a new one soon!
Im pretty sure both summit and trick flow make them for 383 1pc. seal. little pricy for trick flow but.
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