ST3 Cam
130# springs
Modded Retainers
JP Double Roller Set
Ported Heads (On the edge about not sure)
Should I also get pushrods, and valves? My GT has 72k on her. Im thinking of just getting the internals done with.
Recommended Pushrod sizing?
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11-01-2008
ST3 Cam
130# springs
Modded Retainers
JP Double Roller Set
Ported Heads (On the edge about not sure)
Should I also get pushrods, and valves? My GT has 72k on her. Im thinking of just getting the internals done with.
Recommended Pushrod sizing?
Last edited by ChrisGTT; 11-01-2008 at 07:24 PM.
11-01-2008
I think you will need a double roller chain with those valve springs if Im not badly mistaken and there are possibly some modifications needed to the double roller timing chain gear depending on which one you get. I would think that with that kind of added stress on the valve train, stronger push rods would be a fantastic idea.
As for size and whether or not you should get new valves, Im not sure.
11-01-2008
No your right i forgot to add that lol Im getting a JP double roller with no tensioner
11-01-2008
I dont recall if the JP double roller had the chamfer (sp?) issue or not, but it would be worth looking into.
11-01-2008
Yea they have the same warning for both the JP and Rollmasters. I guess the sp issue is for Double Rollers kits on some cars. They say throw another gasket/spacer on there.
11-01-2008
My understanding is that if you have the Chamfer corrected that no longer is necessary.
11-01-2008
hmm could you explain a little if possible?
11-01-2008
The bottom gear that the chain rides on, the side of it that butts up against the crankshaft, the chamfer is wrong and and causes the chain to stick out further than it should causing the chain to ride at a slight angle to the top gear which puts stress on the chain and causes it the rub up against the oil pump housing. Now I dont know if this applies to the JP double rollers or just the Rollmaster Double Roller chain.
Correcting the chamfer prevents the rubbing and clearance issues along with allowing the chain to roll in line with the top gear. The double rollers out there, whether both the JP or Rollmaster Im not sure, were made for the Australlian 3800 which has a bit different crank than the American version.
11-01-2008
ah I see I didn't know what you were saying was wrong with the chamfer. Thank you for that I did not figure in the angle of the chains to the cam. Hmm ill ask tim or zoomer over at zzp if that applies to both. Thank you Scotty! First day here and I'm already being informed haha
11-01-2008
Gaskets won't prevent this from happening. Machine the gear so that it sits correctly on the crank, trust me on this one.
11-01-2008
Oh Wow That's Eye opening
11-01-2008
lol i like the cd in the back ground "one million of the worlds best recipes"
11-01-2008
haha....THAT has some interesting recipes on it for sure.Originally Posted by TurboKent
11-02-2008
dang....... one million????? How do you even look through them all!
11-02-2008
I think he should be sharing them.
11-02-2008
^ agreed... what kind of Alfredo Dishes are on there????
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