needsaresto
Well-Known Member
- Joined
- Nov 13, 2004
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Quick question or two here. When grinding a cast crank (say for example a 360 crank to 340 mains) and removing lots of material, can it be nitrided?
Or is that just for forged cranks?
Is it necessary if possible?
He doesn't feel grinding a 360 crank down this far will affect strength, but it will remove all surface hardening?
What are your feelings on cutting down a 360 crank to fit 340 mains? I realise the scat cast crank is $289 bucks,but I might have scored a FREE 360 crank. So I could potentially have a 3.58 340 main crank for the cost of grinding it. Acourse balancing costs might make a stock crank a bad idea.
Local machinist wants $150 for grinding a crank,no matter what crank or how much material removed. That's canuck bucks in a remote area.
Also wants $25 per hole for boring/honing. So $200 will get you a hot tank,cam bearings and bore/hone. $150 to deck a block. Not bad prices for here. He's the only guy available locally. More of a G.M guy...but a good machinist. Dealt with him before.
Im determined to pursue the 349 build for my M. Need torque for that heavy pig. Thanks BJR!
Or is that just for forged cranks?
Is it necessary if possible?
He doesn't feel grinding a 360 crank down this far will affect strength, but it will remove all surface hardening?
What are your feelings on cutting down a 360 crank to fit 340 mains? I realise the scat cast crank is $289 bucks,but I might have scored a FREE 360 crank. So I could potentially have a 3.58 340 main crank for the cost of grinding it. Acourse balancing costs might make a stock crank a bad idea.
Local machinist wants $150 for grinding a crank,no matter what crank or how much material removed. That's canuck bucks in a remote area.
Also wants $25 per hole for boring/honing. So $200 will get you a hot tank,cam bearings and bore/hone. $150 to deck a block. Not bad prices for here. He's the only guy available locally. More of a G.M guy...but a good machinist. Dealt with him before.
Im determined to pursue the 349 build for my M. Need torque for that heavy pig. Thanks BJR!