Roller Rockers

[chargerman]

As title really

Anyone tried higher ratio rockers on there LS engines, quite a few makes around at varying prices, is it a relativley easy & cheap mod for a standard cam for a few more horses or not worth bothering with?

Your thoughts please

[Boosted LS1]

A better mod is to change the cam imo and it's not that hard a job.

[gsd2000]

i have a set of 1.75 rockers. I only got them as i won them on ebay for the pricey sum of 40 whole pounds. I just need to get a set of hardened pushrods and then stick them in. I don't plan on fitting for a few months though.

I think k15tox has a set in his cv8

[ringram]

Yes 1.8:1 on my LS2 and by far and away loads more power than anyone else's failed experiments
Totally stock except rockers and cai.

360rwhp at SRR. Most exhaust and tune LS3's were only in the 340 range.
Only a few bhp less than some cammed LS2's

Sure a cam is better for power, but as an easy DIY the rockers can work ok.

[chargerman]

Thanks for the replies

I've got an Orssom intake on order so may get myself a set of 1.8 ratio rockers as well, I could do a cam but as i've got a maggie 112 already fitted may be too much for my stock bottom end

[ringram]

Be careful on the ratio. Sometimes you may get near to stock coil bind and require some aftermarket springs too.
In effect you will gain a small bit of cam duration at 0.050 and about 5% of lift throughout.
SLP do some good ones, but they are expensive.

[Boosted LS1]

You'll also get faster valve opening events.

[Brummmie]

I put 1.85 Comp roller rockers into mine and got float, changed back to stock and it cured it. Do the cam.