Gen 3 Stage 3 JM cylinder heads for sale

[Dan Cragin]

Came across a couple sets of new JM Stage 3 heads for the 03-06 Viper.

These heads are CNC ported with stainless valves, Phos/Bronze valve guides, Viton valve seals, ductle iron valve seats and performance valve springs and retainers. Combustion chambers are reshaped and matched for 10.0 to 1 compression. Resurfaced for MLS gaskets and intake face surfaced for proper intake fitment.

$3500 a set/ No core charge

Dan Cragin/SPT 310-597-6295

 

[prpaster]

Dan how do these compare to a gg's ported heads ?

 

[Dan Cragin]

The GG and JM stage 3 heads are very much a-like, from the data i have seen the GG heads may flow a little better.

 

[prpaster]

gotcha. I will give you a call tomorrow about these ... Thanks!!

 

[troublemaker]

I guess my silence has been ended.

What does it take to run these on a Gen 2. I know it needs a boss welded on one of the heads, but anything else?

 

[Dan Cragin]

You will need to change the rocker arms, pushrods and valve covers as well.