Frustrated need advise - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*ksjh1316* · 03-17-2009, 03:36 PM

Ok this saga began on Friday the 13th, my engine guy called and said you have to come see this you wont believe it. So far nothing has go right with this build and I didn't expect anything different out of my 10k rebuilt 350. So I go daown to check out the situation and find everything in the motor looks like new a pleasent suprise but pull on the harmonic ballancer and hear a nice ker-klunk looks like the engine builder forgot to turn the crank and now it is whiped.

I have to rebuild this thing again but the question is I just bought new vortec heads for the motor and since I need a new crank whould it be easier to just turn this think into a 383? The next question is how much of a difference is a 383 vs 350 stock in power and torque usually. This motor was just bored to .30 currently.

Any help or direction is appreciated.

68gmsee · 03-17-2009, 06:27 PM

I don't know how much more torque or hp you'd get going to a 383 stroker engine but here's a little writeup about it that may help. Seems like it may be worth a try.

http://www.383stroker.com/

68gmsee · 03-17-2009, 06:35 PM

I did a little more research on the 383 since I had thought of doing that last year and I guess it's not as simple as just installing a 400 crank. At least this next site tells you it's not...

http://www.chevymania.com/tech/383.htm

03-17-2009, 03:36 PM	#1
ksjh1316 Account Suspended Join Date: Jul 2007 Location: Wichita KS Posts: 1,599	Frustrated need advise Ok this saga began on Friday the 13th, my engine guy called and said you have to come see this you wont believe it. So far nothing has go right with this build and I didn't expect anything different out of my 10k rebuilt 350. So I go daown to check out the situation and find everything in the motor looks like new a pleasent suprise but pull on the harmonic ballancer and hear a nice ker-klunk looks like the engine builder forgot to turn the crank and now it is whiped. I have to rebuild this thing again but the question is I just bought new vortec heads for the motor and since I need a new crank whould it be easier to just turn this think into a 383? The next question is how much of a difference is a 383 vs 350 stock in power and torque usually. This motor was just bored to .30 currently. Any help or direction is appreciated.

03-17-2009, 06:27 PM	#2
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Frustrated need advise I don't know how much more torque or hp you'd get going to a 383 stroker engine but here's a little writeup about it that may help. Seems like it may be worth a try. http://www.383stroker.com/

03-17-2009, 06:35 PM	#3
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Frustrated need advise I did a little more research on the 383 since I had thought of doing that last year and I guess it's not as simple as just installing a 400 crank. At least this next site tells you it's not... http://www.chevymania.com/tech/383.htm



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