superspirit

Just wondering if anybody has a spring recommendation that will work with the LT4 hotcam retainers and seats, that will hold up better than the hotcam springs. I have the hotcam spring setup now but would like to upgrade the springs without buying a $240 dollar kit.

guppymech

iTrader: (7)

I use PAC1212x springs with stock retainers and seats on my hotcam with 1.6 Comp Magnum rockers. I've had this combo to 6200 with no issues. I wouldn't run them on a cam with more lift than the hotcams .525" though. I bought them from sponsor Car Shop Inc, they're good people.

I just checked out the current price on these and they've gone up quite a bit since last year.

*Edit* PAC1212x spring rates:
125@1.750
315@1.250
Rate 380
Coil bind 1.180

superspirit

Yea those pac's are quite pricey. thought for sure there would be a lot more responses with all the LT1 guru's on here. I checked out the alex's parts springs, but they are never in stock. thinking about the SDPC Z28 spring for hydraulic roller,

130@ 1.800
350@1.200
coil bind 1.150

Brian Tooley Racing

iTrader: (13)

$169 in stock

http://www.briantooleyracing.com/550-lift-pac-1212x-beehive-springs.html

guppymech

iTrader: (7)

Brian, that is a good price. Superspirit, FYI PAC describes the 1212x as a beehive but it is not. The ID and OD dimensions listed for the springs bear this out. They would probably sell more of them if they would correct this error.

Those valve springs saved my *** once when I missed a shift.