tspence45

iTrader: (30)

I just picked up some Angus Racing 1.7RR's from a member off CZ28.com, and also a spring, lock, and retainer set from a hotcam kit. I want to get them installed next week but have a few questions first. Will I need to get new pushrods and lifters for a rocker arm install, or not worry about it until I swap the cam? Also, which guideplates will I need, if I'm sticking with stock pushrods? http://www.ws6project.com/user_stor/...c3e481ed22b451

AChotrod

iTrader: (17)

Not sure that lt4 springs will work with 1.7s they float with 1.6s after they get some miles on them.

96silverram

iTrader: (12)

Definitely don't want to use LT4 springs, only good to .525" lift. Your 1.7's should push the hotcam specs into the .540 ish range.

transamws6_97

iTrader: (5)

i believe he is doing this with a stock cam just the parts are from the hotcam kit. but anyways with a stock cam and 1.7s he'll be running .5168 lift which is smaller than the advertised lift the lt4 hotcam kit is capable of

-PEPE-

iTrader: (10)

I'd recommend calling Crane or Comp and asking a tech about this to be sure, as mentioned above the stock springs with 1.7s will be very questionable, 1.6s would be ok. I do know a GM-847 and Crane 99893 springs with tit-retainers and clips with 1.7s are a really sweet setup. I'd go with some Comp pushrods Vs. stock (bit rusty so I forget the size Comp pushrods to recommend).

tspence45

iTrader: (30)

Exactly. That's why I went with the hotcam springs. Otherwise, I would've just gotten the Comp 918's. But, I figured I'd save myself around $150-$200, since I got the LT4 springs, locks, and retainers for $40.

LT14LIFE JT

iTrader: (1)

I used GM valve springs with my 1.7s. Mine were good to .560 lift. They were for a V6 but fit perfect and saved money. I got the part number from a buddy and they do work flawlessly. I went a step further and got valve seals while I was at it. You can order them from the counter at your local GM dealership and they'll be there in 1-2 days.

lt1-xjs

If the springs work with the Hotcam, they should work with the stock cam.
The rockers I'm guessing are not self aligning. I run Trickflow guide plates,
5/16, 30400623-8 and TF 7.200 "chromoly pushrods". You will also need Arp
rocker studs with the added length to bolt on the guide plates, what ever your rocker size is. Oh, and maybe new valve covers.

96silverram

iTrader: (12)

Okay, let me say it a different way. I have the 1.6 CC roller rockers ( NSA ) with comp pushrods, GMPP guide plates, ARP 7/16" studs and LT4 springs. All of this is on the stock heads and stock cam. I get some occasional float with this setup, LT4 springs just get a little weak over time (I've had mine for a couple of years). If I were to do it again I would put a spring in that would give me a little more room to play, that is just too close IMO. I think your going to have some float after the springs are used for a couple of months. Your already spending a decent amount of money, just go a little bit more and I think in the long run it will work out much better

PS: I have a set of CC 1.7's with comp EX-614 springs just sitting in a box. Never got around to changing it to a 1.7 setup Your making me want to do the swap, now.

tspence45

iTrader: (30)

Were they just stock V6 springs or what? Sounds like a good, cheap idea. I'm surprised I haven't heard of more people doing it.

LT14LIFE JT

iTrader: (1)

I'll check and see if I can get you a part number for them. I want to say they were for a 3800 V6, but don't quote me on that. I know they were an OEM GM maunfactured part as well as the valve seals. I was really impressed with them especially for the price.

AChotrod

iTrader: (17)

You said your planning on swapping the cam??? DO NOT use the Lt4 hot springs with 1.7s. With the stock cam it should work for a while.