camar0corey

iTrader: (22)

Alright here is the setup, PAC beehives (1218? IIRC), Comp Ultra Promags 1.6, hardened pushrods/guideplates, 3/8" studs, ported stock heads(stock valves so far as I can tell).

Some of the rockers do not line up all that well. What are my guideplate options? I searched around a bit, someone mentioned trickflow guideplates, not sure if that is only for trickflow heads or stock heads.

What are my options? I don't remember who made the current hardened guideplates that are on my motor.

Looking at taking care of this though as I have the covers off, I broke a polylock.

ACE1252

This will help with your trickflow question. I have them on stock heads. No problems in 5 years. The part number is "TFS-30400623-8".

https://ls1tech.com/forums/lt1-lt4-m...ification.html

Jaxem

iTrader: (3)

+1 on the trickflows, i just put them on a couple months ago, they lined up perfect

Cajun ELESS-ONE

i got isky adjustable guide plates. i havent installed them yet, but i did research on them, and there was alot of positive stuff about them. and since they are adjustable, you know they will line up. just tack weld them and they are good to go. plus i got them free too

BALLSS

+1 on the adjustable ISKY's

bowtienut

iTrader: (1)

+2 on the adjustable Isky's

waltsfastz

iTrader: (4)

Iskys here as well. I bought a set of Erson for a small block and they were awfull.

camar0corey

iTrader: (22)

The trickflows seem more tempting as they would be a bolt in and go kind of deal....

They are hardened??

Also I saw in that linked thread about the torque spec on the rocker studs, what is the magic number? I don't think I see it listed in either the Haynes or Chiltons. Some day I plan on picking up the factory manuals.

leadfoot4

iTrader: (1)

I'm 99% sure it's 50 ft/lbs........

Catmaigne

iTrader: (6)

I bought a set of Jegs brand guideplates and never had any alignment problems with them. I compared them to the Trick Flows listed above and the slots/stud holes looked like they were in the same spots.

camar0corey

iTrader: (22)

Good to know. I'm going to pull one of what I have tomorrow and see what they are.

shbox

+ 1%.

sabangzhi

I have them on stock heads. No problems in 5 years.

leadfoot4

iTrader: (1)

Thanks!!

Good to know that my memory still works pretty good.

BALLSS

IMHO a guideplate that has adjustment "L to R" for each inake & exhaust valve is ideal to get the RR to be dead nuts centered on valve stem tip (L to R). The ISKY's allow this as you can adjust the intake and exhaust separately without affecting the other because they are "two piece" guideplates.

I found the single piece ones did not accommodate this L to R adjustment even with larger holes the RR studs go through to allow some L to R adjustment. Doing so affects the other valve alignment

just my $.02

Huntr1117

iTrader: (18)

I can't tell with the pic but did you weld the guideplates after you adjusted them?

BALLSS

no. They have been on just bolted for several years. If I ever take studs out I would tack weld them and # them

The holes in each 1/2 are slotted to allow some L&R adjustment. You grind off some of the fingers if they both need to slide together closer. What I had to do on some of them.

These adjustable guideplates really allow dead nut centering of RR on valve tip in terms of L to R positioning. Something a fixed guideplate will not do and I found those types did not get all the RR aligned, some were off quite a bit