MY99TAWS6

iTrader: (3)

Am making an order asap and need to know the arp rocker stud part numbers for ls1 . I assume they are 3/8 inch? Do I need the more expensive pro ones ,engine is only going to be taken to 7000 rpm max.

The more expensive ones are double the price and will pay it if you guys really think they are necessary.

MY99TAWS6

iTrader: (3)

Hmm looks like need to buy rocker arm nuts as well.Anyone got these and what part numbers did you use..they list two rocker arm studs.

JPH

iTrader: (2)

EDELBROCK #8597 (2), these are ARP rocker arm bolts for stock gm LS1 rocker arms.

MY99TAWS6

iTrader: (3)

So do these work with my yella terra rockers ? Think they use stock nuts?
Woudln't mind a bit better rocker studs..so stock is 3/8 inch?

JPH

iTrader: (2)

Dunno on that? YTs should have came with new hardware? 8mm stuff. Are your rockers adjustable?

MY99TAWS6

iTrader: (3)

Non adjustable 1.8s. Should take a look in the box but think they just use stock rocker nuts.

KCS

iTrader: (20)

Yella Terra's (and all stock LSx engines for that matter) use a bolt, not a stud. The LSx engine is metric, so its not a 3/8" bolt, its an M8. I think 40-45mm in length should be fine, in the "course" thread I think.

Usually YT supplies just a standard Grade 8 allen head bolt that you can pick up at any old hardware store.