96 crank
- Thread starter BMFB
- Start date
BMFB
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Re: 96 crank
Well, i went to the yard, and i found a crank i think. The valve covers are the older style like ours. I took special note that the rear main seal was a 1 piece held on by torx bolts, and one nut. I took it almost all the way apart and also noted that the balance weights were slightly different. the very farthest back one kinda had a fang in it, where as mine was just a straight drop off. Other than that they seemed identical.
I also noted that there was an engine sitting behind it that was a 4.3 and had the vortec valve covers, would that by default have the better rods in it? or would it have to be the 03 and up. I can get the rods for 20 buck and a day of diggin in a hot yard....
Well, i went to the yard, and i found a crank i think. The valve covers are the older style like ours. I took special note that the rear main seal was a 1 piece held on by torx bolts, and one nut. I took it almost all the way apart and also noted that the balance weights were slightly different. the very farthest back one kinda had a fang in it, where as mine was just a straight drop off. Other than that they seemed identical.
I also noted that there was an engine sitting behind it that was a 4.3 and had the vortec valve covers, would that by default have the better rods in it? or would it have to be the 03 and up. I can get the rods for 20 buck and a day of diggin in a hot yard....
The Devils Own Chariot
Active member
Re: 96 crank
I thought everything after our trucks was better. We have to have the worst flowing heads GM ever made. I thought I read that the vortec motors did have stronger stock internals than our stock internals. But this is second hand information. I cant confirm this. The stock sy ty crank (again from what I have read) will hold 600 hp with 4 bolt mains. The stroke on the 96 crank Im almost 100% sure is the same.
I would not be comfortable using used piston rods from a junk yard.
If you are interested I have stock .020 pistons with stock rods that came out of my motor before I went H-beam rods and forged aluminum pistions. These were from a running truck. I even have the stock cam lifters and rockers. Im not really sure what you have in mind.
I thought everything after our trucks was better. We have to have the worst flowing heads GM ever made. I thought I read that the vortec motors did have stronger stock internals than our stock internals. But this is second hand information. I cant confirm this. The stock sy ty crank (again from what I have read) will hold 600 hp with 4 bolt mains. The stroke on the 96 crank Im almost 100% sure is the same.
I would not be comfortable using used piston rods from a junk yard.
If you are interested I have stock .020 pistons with stock rods that came out of my motor before I went H-beam rods and forged aluminum pistions. These were from a running truck. I even have the stock cam lifters and rockers. Im not really sure what you have in mind.
Last edited:
turbodig
Active member
BMFB
Not to scale
Re: 96 crank
Im just lookin to rebuild my motor. it died due to an oil pump failure, and took the crank with it. I need to find one and it seems that a junk yard is the easiest, im just wondering about interchangeability. I looked at that artical that you posted, and ill have to see if i can tell the difference between the two, although if the only side effect of using a rom vs a tos is a ticking noise that doesnt bother me, but ill take a close look at the flexplates and harmonic balancers. as the motor is being balanced as part if its rebuild, should all that stuff work out in the end?
Im just lookin to rebuild my motor. it died due to an oil pump failure, and took the crank with it. I need to find one and it seems that a junk yard is the easiest, im just wondering about interchangeability. I looked at that artical that you posted, and ill have to see if i can tell the difference between the two, although if the only side effect of using a rom vs a tos is a ticking noise that doesnt bother me, but ill take a close look at the flexplates and harmonic balancers. as the motor is being balanced as part if its rebuild, should all that stuff work out in the end?
The Devils Own Chariot
Active member
Re: 96 crank
Campbell Automotive had a good deal on 40% stronger over stock cranks. Maybe call them up?
Campbell Automotive had a good deal on 40% stronger over stock cranks. Maybe call them up?