How much to bore for stroker?

[Talon4ever]

Wuz up guys? I am very interested in purchasing the 2.3 stroker kit from CarShopInc.com I was just wondering how much should I bore out the cylinders. The website says the pistons are .040 So I am assuming I would have to go .040 over. Is this correct? I just want to make sure.

Does anybody have this kit? If so how was it? The price is unbeatable so I thought I would ask before I buy. Thanks.

 

[kooka]

boring is not a performance mod. its strictly to fix messed up cylinder walls. if you need your cylinders bored, then bore over as little as you can to get the cylinders to spec. if there is no reason to bore the motor, then you are wasting money and a chance to save the block should you ever need to bore.

 

[Suparata]

Did you talk to your machinist before you go ahead and buy something that YOU think I it is right?
When will you guys understand that a decision like this has to be made together with the guy who’s building the engine?
Talk to your machinist and see what he recommends and if you are not sure come back and get a second opinion.

 

[char]

very true.... to an extent in a smaller motor such as the 4g63 boring is used to clean the cylinder walls before a new build. and if you over bore to much... you risk running very hot all the time since there is less material for heat to transfer through to the water jackets. i would agree bore as little as need.

but when you hear about boring a v 8 motor that can increase your performance greatly but once again how streetable do you want you car to go say a 350 bored stroked to a 383 you will have a ass load more punch then you did with a 350.

just fix it dont bore for performance unless your running 8 cyl

 

[Goobdog]

I think he was saying that the kit only offers .40 over pistons. Like the Weisco pistons that SBR sells for strokers start at .20 overbore they dont offer a stock bore size, so you have no choice.

 

[Lunch_Box]

Well if you have a choice in piston sizes go with the smallest amount of boring that your block will need.

 

[Talon4ever]

Did you talk to your machinist before you go ahead and buy something that YOU think I it is right?
When will you guys understand that a decision like this has to be made together with the guy who’s building the engine?
Talk to your machinist and see what he recommends and if you are not sure come back and get a second opinion.

Slow your roll buddy, I didn't even say that I bought the storker kit already. Yes I know this is very important to decide and that is why I posted here. This way I can get some positive feedback. My 6 bolt block is almost perfect and doesn't need to be bored that much at all. But I was wondering if you had to go that far for a stroker motor. The website says the pistons are .040 so I am assuming I have to go .040. Is this correct or do you think this is too much?

 

[Maglin]

Slow your roll buddy, I didn't even say that I bought the storker kit already. Yes I know this is very important to decide and that is why I posted here. This way I can get some positive feedback. My 6 bolt block is almost perfect and doesn't need to be bored that much at all. But I was wondering if you had to go that far for a stroker motor. The website says the pistons are .040 so I am assuming I have to go .040. Is this correct or do you think this is too much?

Call the company and see what sizes they offer. Talk to the machinest and see how much if any the block HAS to go. It's very important to know this stuff before you buy. If you don't need to bore and this company only offers the .040 over kit. I would personally not take it. As stated earlier you can run into overheat issues with thinner cyl. walls. I personally don't like to take anything over .030 over. After that I start looking for a new block. But that is just me. Also on a side note. Thinner clyender walls don't distribute heat as evenly and can crack due to hot spots. Those are my reasons for not going over .030. I just like the insurance that I won't have to build another motor latter down the road due to a bad cly. wall.

But definitly go as low a possible.