951 Block
#2
Race Car
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
What's wrong with your block..?
What year is the car/engine...?
Keep in mind that 86 blocks are different in the oil pressure regulator, and balance shaft area. Lower balance shaft has a different cover and bearing cap for the rear, balance shaft bearing, is attached with a bearing cap that is separate from the BS cover and held on by nuts, where later engines have no sleeve for the OP regulator and the bearing cap for the lower BS is integrated into the BS cover.
These differences may be reversable, to the more modern style, but I'd hate to see you get a block, you can't use...?
Terry
What year is the car/engine...?
Keep in mind that 86 blocks are different in the oil pressure regulator, and balance shaft area. Lower balance shaft has a different cover and bearing cap for the rear, balance shaft bearing, is attached with a bearing cap that is separate from the BS cover and held on by nuts, where later engines have no sleeve for the OP regulator and the bearing cap for the lower BS is integrated into the BS cover.
These differences may be reversable, to the more modern style, but I'd hate to see you get a block, you can't use...?
Terry
#7
Burning Brakes
Join Date: Jun 2001
Location: Utica Michigan
Posts: 1,088
Likes: 0
Received 0 Likes
on
0 Posts
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
I am not totally sure on this. But I was under the impression you could not hone a porshe block with out restoring the coating on the cylinder walls? If you do not you run the risk of getting into the alluminum... I may be wrong I never actually looked into it..
Trending Topics
#8
Racer
Join Date: Jun 2001
Location: Sparks, Maryland
Posts: 303
Likes: 0
Received 0 Likes
on
0 Posts
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
The block can be bored, honed, acid-etched, then ceramic honed with cerium oxide paste. The pistons in your engine actually "ride" on a smooth layer of silicon carbide crystals embedded in the aluminum block material.
Having your block "repaired" might cost more than you think - my local shop charges around $700 for silica/aluminum block bore and treatment. It might be less for just a single cylinder - mine needed all 4 done.
Finding a single oversize piston is going to be tough!
Greg
Having your block "repaired" might cost more than you think - my local shop charges around $700 for silica/aluminum block bore and treatment. It might be less for just a single cylinder - mine needed all 4 done.
Finding a single oversize piston is going to be tough!
Greg
#9
Burning Brakes
Thread Starter
Join Date: Jan 2002
Location: Fairfax Station, Va
Posts: 1,228
Likes: 0
Received 0 Likes
on
0 Posts
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
Hey Greg,
What shop is that? My engine and car are in northern Va. I think that I am going to try and have all 4 bored to 106mm and use the custom JE pistons from SFR. It would be great if I could drive my block some place and not have to ship it.
What shop is that? My engine and car are in northern Va. I think that I am going to try and have all 4 bored to 106mm and use the custom JE pistons from SFR. It would be great if I could drive my block some place and not have to ship it.
#13
Addict
Rennlist Member
Rennlist Member
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
Maybe not ANY shop, but I would think a competent shop could.
Hey Chris, I am about to do a full rebuild on my car after the Road Atlanta blow up, have been talking to John at SFR about there 2.8 short block.
This will be my first engine pull, since you have done a few I will be asking some questions, ok?
Hey Chris, I am about to do a full rebuild on my car after the Road Atlanta blow up, have been talking to John at SFR about there 2.8 short block.
This will be my first engine pull, since you have done a few I will be asking some questions, ok?
#14
Burning Brakes
Thread Starter
Join Date: Jan 2002
Location: Fairfax Station, Va
Posts: 1,228
Likes: 0
Received 0 Likes
on
0 Posts
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
Sounds great. This last engine pull was by fare the easiest. I was able to use the factory manual and PET on my laptop to make thing go a little quicker. I also got a small digital camera to document the tear down. This should help when putting it back together.
#15
Addict
Rennlist Member
Rennlist Member
Join Date: Jun 2001
Location: Claremont,NH
Posts: 586
Likes: 0
Received 0 Likes
on
0 Posts
![Post](https://rennlist.com/forums/images/icons/icon1.gif)
I have the engine block you are looking for out an 85.5 car,it should have everything you are looking for,$450.00+shiping and it is yours I will even steam clean it for you.