Well looks like I need to decide on a set of pistons now. Been lookin at .040 over forged Mahle. Any insight? Thnx
Pistons?
- Thread starter SHOTZY
- Start date
For the people that had their pistons cut, how much do you have cut? Its just enlarging the width of the bowl correct?
I plan on running comp cams race cam .480/270 . At this lift , reliefs are needed? Still thinkin like a gasser.
When you say delipped are you makin it a flat top?
When you say delipped are you makin it a flat top?The combustion chamber is in the piston. It has a radiused bowl in the top of the piston. When you delip the piston you are opening up the bowl and taking most of the radiused wall out of it. The piston actual pretrudes about .012 out of the block. Zero decking would make them even. Then when the block is trued up you will gain a few thousands back. With any after market cam you should put valve refiefs in the pistons. You want at least .050 on the intake and .070 clearance on the exhaust between the valves and piston after assembly. Hope this helps. Guy at SoCal or Curtis at DPR can help with the proper machine.
Thanks. That helps alot. My buddy has a hookup at the dealership, apparently they make .050 over OEM. Was thinkin about goin this route and havin them cut and coated. The aluminum ring lands on the fordged Mahle concerend me a bit. So did the price. Any thoughts on this?
Yeah, turn it into a LB7!!:hello:
:exactly: every one knows the LB7's are :coolspot:
:rofl:
Yeah, turn it into a LB7!!:hello:
Ya know im not the type of guy to call someone out, but your makin it awefully hard little buddy! The dirty WILL rise again and ol black gonna suffer the wrath!:hug:
Wait you tune the dirty! Dam@ it!!!
Yeah yeah! We'll see
Not my tune, it's Chris's from years ago that Larry and I worked to get the most out of it. To bad the lilly wasn't up for the challenge Maybe some LB7 stuff will help
Not my tune, it's Chris's from years ago that Larry and I worked to get the most out of it. To bad the lilly wasn't up for the challenge
Maybe some LB7 stuff will help
Oh yeah forgot where that tune originated. Thanks guys for your help as well. By the time it all done she'll be a lby7z! Oh well its still a dmax.
Stay with the factory LB7's and cut them. They are made by Mahle. They forged don't have enough track record for the DD and the cut and coated cast ones have a decent track record for what you will probably be doing. There is a place in S. Ga. that can give one hell of a good coating for you also.
I would do the Mahles and never look back
Ya they cost,But so do delipped STOCK pistons
Ya im forged fan:angel:
Ya they cost,But so do delipped STOCK pistons
Ya im forged fan:angel:
Are the factory LB7's the same as factory LLY's? Agree with the track record, that was my concern. Thats also what Guy said.
I am pretty sure that both were made by Mahle. It was the LBZ and later that went to some foreign maker. Guy would know for sure.