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what crank is better?

Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

what crank is better?

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Old

Mar 13, 2005 | 10:34 PM

#1

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From: arlington aka aggtown

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what crank is better?

which one is better a 4340 or a 4140 crank and why? also how much power can a 5140 crank hold?

waht crank type holds the most power?

Old

Mar 14, 2005 | 12:47 PM

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Quote:

Originally Posted by eric69nova

which one is better a 4340 or a 4140 crank and why? also how much power can a 5140 crank hold?

waht crank type holds the most power?

a 43040 forge piece is the strongest crank you can get, besides a bilett crank

The 43040 forging is stronger than the others.

A 5140 can hold good power depending on the rest of the setup. Good Bolts, rods etc.

Old

Mar 16, 2005 | 06:00 PM

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Crower

Old

Mar 17, 2005 | 05:58 PM

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Quote:

Originally Posted by eric69nova

which one is better a 4340 or a 4140 crank and why? also how much power can a 5140 crank hold?

waht crank type holds the most power?

We of course like the 4340 material! I agree that the CROWER crankshaft is definitantly one of the BETTER cranks,We also think that as far as a inexpensive crank like the EAGLE crank.How much power are you putting out.That would be helpful to know!Callies cranks are great also,but it really depends on how much you want to spend.GM'S 5140 cranks were good up to 600hp or so!Hope that helps!

Old

Mar 17, 2005 | 06:21 PM

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From: arlington aka aggtown

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it is a scat crank i was truing to get info and the rods are scat h-beam w/ ross flat top racing pistons and for a 420sbc that will have the bottle on it

Old

Mar 17, 2005 | 06:42 PM

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Quote:

Originally Posted by eric69nova

which one is better a 4340 or a 4140 crank and why? also how much power can a 5140 crank hold?waht crank type holds the most power?

Specifically, what motor are we talking about here? sbc, LT1, LS1, BBC, other?

Old

Mar 17, 2005 | 07:05 PM

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From: arlington aka aggtown

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its a sbc chevy

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Old

Mar 17, 2005 | 07:15 PM

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if you can afford it a non twist oliver is the best way to go

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Old

Mar 17, 2005 | 08:11 PM

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4340 is probably the best but they will break before they will flex.

Old

Mar 17, 2005 | 11:25 PM

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I might be a bit nervous of spraying the Scat too hard.

Old

Mar 18, 2005 | 08:28 AM

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From: arlington aka aggtown

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Quote:

Originally Posted by CTSV05

I might be a bit nervous of spraying the Scat too hard.

why7 would u be nervous of spraying

Old

Mar 21, 2005 | 12:51 AM

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How about a forged 1053 steel crankshaft?

Old

Mar 23, 2005 | 08:32 PM

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Quote:

Originally Posted by Fandango

How about a forged 1053 steel crankshaft?

4130 is probably the best

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4140, 4340, 5140, aa, crank, cranks, crankshaft, crower, eagle, gm, lt1, power, race, sbc, scat, stronger, whats

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