HT383E with 1.6 roller rockers?

[Phone Man]

Hello,
Wondering if anyone knows the answer to this. I plan on getting the HT383E for my 99 Tahoe. I would like to install a set of roller rockers and was thinking of putting on 1.6 rather than the stock 1.5 ratio. I have scoured the web and some say they will fit, others say that the push rods will rub and the head will require work.

Too bad they didn't have rollers in there already since the cam is a roller. I'm thinking this will give a little more life into it.

Thanks

 

[blueflamed03]

yea, you may have to check to make sure the 1.6 doesn't change it enough where the pushrods run the head. Some you have to elongate the pushrod hole.
why not full roller 1.5's? Like the Comp Pro Magnum?

 

[DJTricky]

my 383 has 1.6's and i love them

here is what the "pop" sound is. (i know bad sound quality i think)

 

[Phone Man]

You didn't have to machine the heads for clearence? Are we talking about the 383e? I am def getting rollers for it. not sure about the 1.6 yet

 

[DJTricky]

well i have a 383 eagle kit for my vortec so i didn't have to. but i had to get a 1.6 roller kit.

 

[DBLTAP]

More questions need to be asked if you plan on running the stock Vortec heads. If the answer is yes than is the cam stock? The real concern about adding the 1.6 rockers is the rocker studs themselves...press fit from the factory wont provide a lot of confidence if you plan on revving the motor much at all. Should really add 4130 push rods too, Beehive springs maybe (in stock form bad things will happen if you go over about .480 lift)...and tall valve covers to clear em. Don't forget that them rockers need to be self aligning (read more. $$$) as well.

 

[Phone Man]

Settled on 1.5 full rollers from Scorpion. The work involved getting the 1.6's to fit is not worth the expense. I'll be satisfied that it will be a full roller valve train. That should keep the timing perfect. Ordered the HT383E from Fred Beans for $4450. It was the lowest price I could find. It will be here in a few days. Can't wait!

 

[blueflamed03]

cool, post pics of motor swap