I have talked to a few machine shops and they keep telling me that the block has to be notched for the crank. and they are charging alot to do so. i am on travel and not able to check the clearance. its a 6.0 block and a 4" stroker crank for the guys that has had the work done did you all have to do this. thanks

 

um, nope. they are pulling your leg. it's close, but not that close. once you pass the 4.00" stroke mark, then you will have to do a little cutting.

 

Yep, they are probably thinking old school SBC. The LS variants will clear a 4" stroke but, have to be notched above that from what I understand.

My block is being notched, already has actually.

 

thats what i was thinking but i am over 500 miles away from the block and unable to see for my self thanks guys

 

so basically all they have to do is bore it .30 over

 

Depending on the rod being used, you may just have to notch just a little... Maybe 50-100 thou....
Are you sure you want to have a non-LS1 engine shop build it? Sounds a little scary allready...

 

Stay away from a shop that only thinks old school.They obviousely have never stroked a Gen 3 motor,I understand that on some Gen 3 strokers you have to clearance #8 piston to clear the timing wheel.

 

well i guess i need to put crank in and rods to see if it will clear. the shops do great work but i guess they deal with old sb rather than ls1

 

I'm glad you said it gonzo... These GEN III's are finicky, and also run into strange clearencing issues. It takes a little while.... I think I'm good now, about 400 of them later!!

 

I want the machinist that has been there done that on his own project and then does many for the public before he get into my wallet.