Stage 2 head pistons CP or JE pistons

[Noe]

Needs help with ordering pistons for my stage 2 project.Block #153 4.030 bore,duttweiler stage 2 BMS heads aluminum 46cc 2.125 intake and 1.625 exhaust,Carrillo 6.5 on center rods bushed .927 with Carr bolts,LA billet 3.590 crank,comp cams roller lifter,comp cams 224 224 .577 gross lift,Jesel rocker system,Felpro 1026 gasket i believe .039 thickness and 8.5cc compressed.Block height 9.498, -1/2 of stroke 1.795,-6.5 rod length,-0.014 deck clearance =1.189 compression height.Need to know dish size of piston and piston valve relief size on top of piston.Single or double spiral locks?Size of piston rings 1/6 1/6 3/16 or other. And finally piston pin length,thickness and hardness of pin or different brand like diamond?

 

[BlownV6]

Pistons

Give that very info plus your target compression ratio to whom ever is going to order the pistons. Piston MFG will tell you if they can get there. You may need a thicker head gasket if your looking at comp numbers in the 8s
Mike

 

[Mac in SD]

I dealt with a decked block (9.500) and 6.5 rods by having the rods offset bushed by .030. Might help with getting a set of pistons with proper dome thickness and still not have the pin in the oil ring land.

Diamond uses TRW raw forgings, which expand less, so you don't have to deal with as much rattling as some others.

Just my $.02

 

[Alky V6]

Double spirolocks. Take a look at the metric size rings. Less drag equals more HP.

Sorry. I hate doing the math on my own projects.

 

[Underboost]

CP Pistons was formed by the key people that worked at JE. They left to start CP.

 

[ttypewhite]

Needs help with ordering pistons for my stage 2 project.Block #153 4.030 bore,duttweiler stage 2 BMS heads aluminum 46cc 2.125 intake and 1.625 exhaust,Carrillo 6.5 on center rods bushed .927 with Carr bolts,LA billet 3.590 crank,comp cams roller lifter,comp cams 224 224 .577 gross lift,Jesel rocker system,Felpro 1026 gasket i believe .039 thickness and 8.5cc compressed.Block height 9.498, -1/2 of stroke 1.795,-6.5 rod length,-0.014 deck clearance =1.189 compression height.Need to know dish size of piston and piston valve relief size on top of piston.Single or double spiral locks?Size of piston rings 1/6 1/6 3/16 or other. And finally piston pin length,thickness and hardness of pin or different brand like diamond?

Call Dan at DLS. His info is in my sig. You would also save some coin if you ordered it from him being a supplier, then going direct to the manufacturer.