JD B Pistons

[Anonymous-0]

Just wondering if anybody can tell me wat kind of compression i can get on a 48 b with .125 over pistons from murphys with stock stroke. Just wondering if it would be worth lenghting the rods or not. Kinda limited in my area. I would like to run 2nd gear

 

[Mike N Mo]

Murphy's can make pistons with whatever compression you want without lengthening the rods. If it's strictly a pulling tractor, get it to 11:1 or so. Opinions vary on ideal compression ratio for a 2-cylinder, my experience has been that cranking up the compression will make more power. My $0.02 worth after allowing for inflation. Mike

 

[2-banger]

id just buy al mand w style pistons and rods lengthened alot cheap and it will run just as good..get a hold of josh blackburn on pulling forum. i did this to my 60 and a

 

[BushogPapa]

A better Cam and more RPM will help too..

Ron..

 

[jd b puller]

unless you get big on tire or weight, it should run 2nd gear. I'd want a lightweight piston in there with long rods, not a long heavy piston though.

 

[gtx1967jewison]

how much did it help on the dyno &/or track?

 

[2-banger]

in my case helped alot 60 runs great but we also did alot of hd work