Hey All,

Those of you that have or are considering a 4.9L Caddy V8, know there isn't a whole lot of aftermarket support. Bud use to do custom valve trains but said no more... Enter my pole for gauging interest = I have found a highly skilled machinist that will do a run of custom steel ribs that will allow you to anchor roller rockers, use stronger springs, bigger valves & a cam with .500 lift . The machinist works on straight time & the more sets he does at a time, the lower the cost will be. Before anyone has to ask, I'm not in this to make anything - I really like the Caddy powerplant and just want to save anyone else the hassle of tracking down sources. So if you think your interested, let me know !!

Cheers,
Robert

as i just did the same thing your doing organizing stuff for us 4.9 guys. lemme say hell ya. if you would have specific details and what rockers will work. what springs. what cam grinds. id be so in for this stuff it aint funny. keep us all posted and i look forward to more info. later skoon

------------------
84 gt project
3x84 indy
The junk yard is my zen garden

I'll get the parts list together - basically everything but the steel rib & camshaft can be had from the Summit catalog. The rockers are part # CRN-44746-16 - they're for the ford motors, same as the push rods. The springs are Comp beehive springs for the LS1. The pics are a setup Bud did - not going to get negative here, but the ones I'm lining up will be a better quality. The steel ribs should be in the $300-$500 range depending on how many sets we order - considering that every hole has to be individually machined, you can see where the time goes.

Side note - I can't seem to get pics on here, any help ??

Cheers

[This message has been edited by 81 4.9L X-11 (edited 03-19-2009).]

You guys will probably think me a dork, but I like the 4.5 because of the shorter stroke. I'd be in for something where I could use roller rockers and a cam that would put the torque between 3000-6500rpms instead of 500-2000rpms.

Not crazy at all - one of the guys wanting this setup is also running a 4.5... although, with the LS1 springs you'll get a 6800 redline (when valve float starts) so maybe safer a little lower. I run an auto trans so the redline/ WOT shift points on the PROM will be set to 6000 rpm...

I started another thread in the Tech discussion area as well that getting so discussion - https://www.fiero.nl/forum/F...099107.html#lastpost

Cheers