350, 1 piece rear main or 2
#1
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Car: 1986 Iroc-Z
Engine: 355 Phase 2 Bowtie heads
Transmission: 700r4
Axle/Gears: 342
350, 1 piece rear main or 2
I have a bad oil leak in the back of my engine. I dropped the car off this morning to have the trans rebuilt and the guy told me if the engine has a one piece rear main, he will replace it for free.
The casting on the block is 3970010. Does anyone know if this casting has one piece rear main or two. Any help would be great, thanks in advance..
The casting on the block is 3970010. Does anyone know if this casting has one piece rear main or two. Any help would be great, thanks in advance..
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Car: '81 Z-28
Engine: Soon to be a 383
Transmission: Muncie
Axle/Gears: 3.42
Re: 350, 1 piece rear main or 2
2 peice rear main. It could be a 2 or 4 bolt block. The only way to know is to take off the oil pan. These blocks are high nickel content, and are good castings.
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Car: 1986 Iroc-Z
Engine: 355 Phase 2 Bowtie heads
Transmission: 700r4
Axle/Gears: 342
Re: 350, 1 piece rear main or 2
The block didnt come with the car. The roc had a 305 at birth and I have no way of knowing what year the block is. It's probably a two piece considering I could have it done for free if it is a one piece!
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Car: 1986 Iroc-Z
Engine: 355 Phase 2 Bowtie heads
Transmission: 700r4
Axle/Gears: 342
Re: 350, 1 piece rear main or 2
thanks guys. the really bad thing is i had this engine on my engine stand back in march.. it would have been so simple to do then.
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