stock 4.6 crankshaft

sidekicksurfer · 10-03-2007, 08:23 AM

How much HP can a stock 4.6 2v crankshaft handle? Is the stock crankshaft on a cobra better? Is the cobra crankshaft anymore different from a 2v motor?

r3dn3ck · 10-03-2007, 08:53 AM

cobra cranks have 8 bolt flanges, most GT cranks are 6 bolt. Power capacity is more than you'd want in a street car for either. If you're doing a build, use an 8bolt.

bassman97 · 10-03-2007, 09:42 AM

Cobra's are made from forged steel as oppose to cast iron. For piece of mind, I'd go w/ the forged piece. Used ones can go for around $100 if you look hard enough.

mpt_1962 · 10-03-2007, 10:25 AM

stock is safe up to 400hp and the forged are good up to 800 right?

10-03-2007, 08:23 AM	#1 (permalink)
sidekicksurfer Member Join Date: Aug 2007 Posts: 47	stock 4.6 crankshaft How much HP can a stock 4.6 2v crankshaft handle? Is the stock crankshaft on a cobra better? Is the cobra crankshaft anymore different from a 2v motor?

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10-03-2007, 08:53 AM	#2 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 6,856	cobra cranks have 8 bolt flanges, most GT cranks are 6 bolt. Power capacity is more than you'd want in a street car for either. If you're doing a build, use an 8bolt.

10-03-2007, 09:42 AM	#3 (permalink)
bassman97 blank Join Date: Jun 2006 Location: North Jersey Posts: 1,420	Cobra's are made from forged steel as oppose to cast iron. For piece of mind, I'd go w/ the forged piece. Used ones can go for around $100 if you look hard enough.

10-03-2007, 10:25 AM	#4 (permalink)
mpt_1962 Senior Member Join Date: Jun 2007 Location: Twentynine Palms, CA Posts: 816	stock is safe up to 400hp and the forged are good up to 800 right?