lightemupls1

plan on doing a tr224 112 lsa cam swap. how much lift will the stock ls1 springs take? and what about rockers and pushrods? will they be ok for this cam?

sroach20

iTrader: (31)

you need to change the springs and pushrods, rockers will be fine. you can get some comp 918s for cheap or the patriot dual springs for around $240, they come with springs, retainers, and locks. the duals are a good security blanket, if one spring snaps you will have another to keep a valve from playing pinball in your cylinder. then you can pick any kind of hardened pushrods.

SOM 02

iTrader: (10)

if u want 918 springs i have some. springs are used. but has new seats,locks,retainers. posabaly something else. if your intrested let me know. whats a fair price for these springs. the springs are in good shape patriot reinstalled them on my heads. i needed stronger springs so have no use for these. just let me know. thanks

TA1364

iTrader: (11)

Id go with duels no doubt for added security, especially if you drive the car a lot.

massls1guy

iTrader: (9)

I went with new PAC 1218's from SDPC (sdparts.com). I would avoid used 918's if I was you given their track record.

lightemupls1

gmpp makes a hot cam that comes with ls6 springs and they say you can run the stock pushrods for $415. the duration is 218/227, why is the intake so much less than the exhaust? and what would be the advantage of the tr224/224 over 218/227?

Ericbigmac83

iTrader: (19)

Ive got some pac 918's if you want them, got like 1000 miles on them. good to .600 lift

1970judge

iTrader: (12)

The springs need to be changed as well as our pushrods to a hardened. Rocker arms will be fine. 918's/928's will be fine for that particular cam.

memcgraw

I'm thinking similar cam, just maybe the TR224 114, and I'm a newbie when it comes to LS1 mods....do you recommend going with 5/16" or 3/8" rods? Do you need to stay with 5/16" if stock rockers are retained. The Patriot dual springs look good. Would a change to the Patriot PN 2009 LS1 Stage II heads make sense to do?

1970judge

iTrader: (12)

A nice set of heads to accomodate the cam is always recommended. Heads that flow more than stock are never a bad idea per say but always get a set of heads that match the cam. Pretty parts are nice but only when they work together.