firehawk68mcleod

iTrader: (2)

I have a ls2 out of a Trailblazer ss. and im wanting to know what modifications i will have to run a double roller timing chain. i here there will be troubles with the cam sensor and the timing chain cover... Does anyone have any expierance with this thanks.

TransWS6Am

iTrader: (41)

there is a hump on the back side of the timing cover that hits the the double roller. Just grind the hump down for it clear the chain. here is a picture, for better understanding.

firehawk68mcleod

iTrader: (2)

How much did you remove? Did you remove the hump till you hit the bolt hole threads?

TransWS6Am

iTrader: (41)

i never got down to the bolt hole threads, i grinded untill the cover would go on without hitting the chain, then i took it back off and grinded alittle more just to be safe.

firehawk68mcleod

iTrader: (2)

Have you test fitted the cam sensor? some guy on here said they hit

TransWS6Am

iTrader: (41)

Mine didn't hit.

PlatnumStatuz

iTrader: (6)

You will have to do some grinding for sure. I am using the TF double roller and I spent some time grinding and welding. I don't have pics and I can't remember exactly what I did but I used clay to check the clearence till I had a good .200" clearance. The casting needs work on the back where it holds the crank seal.

firehawk68mcleod

iTrader: (2)

Im running the In motion double roller ls2 timing chain set. which texas speed reccommended to me..