Sleeve or new block (6 bolt)

[Misterbeechy]

i just bought a 6 bolt long block but little did i notice theres a huge hole in one of the cylinder wall... my mechanic said they can sleeve it to fix it..

is that recommended or try to find a new short block?

also i have 7 bolt eagle rods and JE pistons, would these be a direct replacement to the 6 bolt crack and block??

thank you very much... Prompt answers would be great due to motor is opened in mechanix now and i dont want to leave the motor there too long..

 

[1g_brandon]

Well you could let the guy try to fix it but i wouldnt. If you look on the classifieds theres always someone selling a block for cheap. And youll end up spending about the same, at least with a good block you will have peace of mind because in my opinion sleeves suck.

 

[bryanwheat]

Sleeves are just fine if they are done properly. Exactly how big is the hole? IF it is actually a hole thru the cylinder than get another block. If it is just a nick in the cylinder than go ahead and sleeve it. As for the rods on the 6 bolt crank. They will fit but there will be way too much side clearance between the rod and crank so it won't work out very well.

 

[chris_72]

I was under the assumption that if sleeves are needed it's for one of 2 reasons.
1. The original bore is too scuffed or worn out to be either honed or overbored.
2. The motor will be built to take boost/nos and the OEM bore liners are not capable of handling that – like Honda H22 motors)
I'm sure there are other reasons, but a cracked block probably shouldn't be used.

 

[BogusSVO]

there are several diffrent sleeves out..

what your mechinic is talking about is a repair style sleeve, dry sleeve

they come in a thick or thin wall

even if the hole in the cylinder bore is big enough to fit your fist thu, but the outer part of the block is still in tact, a thick sleeve would fix it (if installed properly)

now when the sleeve is pressed in, it will distort the cylinder bores to either side of the bore getting the sleeve, so now the block would need to be bored over.

to put the sleeve in the block, will be about $150 then the cost of the over bore $75 or so

now ask if it is cost feesable to fix this block or just get another one.

 

[snoman181]

Just get a new block, i have picked up 6bolt blocks in good shape for around $50 a few times.

 

[Misterbeechy]

i guess ill find another block thx guys... because the hole is as big as our shift knob but its only on the cylinder wall.. not through the block... ill put a pic up some time .. cant now..

but as per the rods and pistons from a 7 bolt.. anymore feedback on that?

 

[snoman181]

7 bolt crank and 6 bolt cranks are different size, so no the 7 bolt rods will not fit in a 6 bolt block. I hope this helps.

 

[Misterbeechy]

thanks it does.. i just needed to know if it would.. thx guys i appreciate your input

 

[simple jake]

There's a guy on Talk selling his 7 bolt block for 25 bucks I think. I was going to buy it but he lives in New Jersey and I live in California so shipping costs are outrageous. His screen name is futuredsmowner. I'm not sure if its still available but its worth a shot.

 

['97boostinGST]

2g pistons will work, 2g rods wont.
You best bet is to sell the forged rods (if your going to be using the 6 bolt block) and just get some stock 6 bolt rods. They are strong enough for most members on here.
The 6 bolt rod will have to be machined at the piston side 1mm.
I have a 6 bolt block for dirt cheap. I do live in Cali tho.
But still, PM if interested.