Author Topic: Question I need answered (Read 1995 times)

Nickthompson · « **on:** June 02, 2014, 12:48:59 AM »

Can I run an oem cylinder that was ran on a long rod crank with spacer plate on a short rod crank by not using spacer plate? If so what style/year piston do I need to get to make it work? Need some info back on this guys!!

Jerry Hall · « **Reply #1 on:** June 02, 2014, 01:01:59 AM »

No spacer plate needed if you run a long rod crank with a 1987 to 1989 piston

No spacer plate needed if you run a short rod crank with a 1985 to 1986 piston

Spacer plate needed if you run a long rod crank with a 1985 to 1986 piston.

Nickthompson · « **Reply #2 on:** June 02, 2014, 01:06:21 AM »

Thanks for the info!

Pumashine · « **Reply #3 on:** June 02, 2014, 09:52:33 AM »

Quote from: Jerry Hall;35568

No spacer plate needed if you run a long rod crank with a 1987 to 1989 piston

No spacer plate needed if you run a short rod crank with a 1985 to 1986 piston

Spacer plate needed if you run a long rod crank with a 1985 to 1986 piston.

Seems this should be a sticky in the tech section with the difference between the two explain.

Nickthompson · « **Reply #4 on:** June 02, 2014, 12:46:37 PM »

I would love to hear an explanation between the two!but for now I have the info I need!

Langbolt · « **Reply #5 on:** June 03, 2014, 07:46:14 PM »

Hey Nick, Few more questions:

Do you know the STROKE of the Long Rod Crank that the Cylinder was Run on ? It might have been a +4 Crank and would have Porting that wouldn't work if you went back to a STOCK stroke Crank (72mm)

What Year Piston was ran in it before. '86 has the half moon cutout at the bottom of the skirt....'87-89 has the window port in the intake side.

What year is the Cylinder ? Look in the Intake and if it has two vertical supports its the '87-89.....if it's a big opening with two smaller openings to the bottom left & right....it's an '86.

'86 on the LEFT....'87-89 on the RIGHT