LSX oil pump gears in an L67 cover?

[turbocharged406sbc]

Rumor has it you can use 4.3L forged rods in the 3800

in a short deck SII block your looking at custom pistons with the wrist pin intruding on the oil ring, youd likely have to run wrist pin buttons or some other means of oil ring support.

5.7" vs 5.565" (for L67 comp height pistons if i recall correctly, NA rods are .1" longer)

in a tall deck SI block you can use SII pistons (NA comp height) with rebushed 440 chrysler rods (6.760 c2c) to reach a 1.98 to 1 rod/stroke ratio, and end up with the piston ~.020 out of the hole allowing for a ~.035 quench clearance (this is of course dep on OE machining tolerances aka deck to crank centerline measure's and HG thickness)

btw...yes you can put a SI crank in a SII block...you have to run a SI flexplate though...the flexplate bolt patterns are different...

 

[Meemperor]

in a short deck SII block your looking at custom pistons with the wrist pin intruding on the oil ring, youd likely have to run wrist pin buttons or some other means of oil ring support.

Hmmmm ... I geuss that's why I have these Custom Ross Racing pistons ...

 

[turbocharged406sbc]

Hmmmm ... I geuss that's why I have these Custom Ross Racing pistons ...

please tell me you got em in a dish that mirror's the chamber? the oe full dish style doesnt make use of the full quench area available...

how far outta the hole? pics of the ring/wrist pin? you grind the rods narrower? what side clearances did you hit?

 

[Meemperor]

please tell me you got em in a dish that mirror's the chamber? the oe full dish style doesnt make use of the full quench area available...

how far outta the hole? pics of the ring/wrist pin? you grind the rods narrower? what side clearances did you hit?

I'll e-mail you pics of the entire set up if you want with the specs.

Have a pic of the fully assembled motor as well as an extra piston.

I'm probably having it balanced in March or april so pics of the rods and everything will be available then.