When one is using roller tip rockers are guide plates needed
#1
Supreme Member
Thread Starter
Join Date: Jul 2001
Location: Pueblo Co
Posts: 3,974
Likes: 0
Received 0 Likes
on
0 Posts
Car: No more birdy
When one is using roller tip rockers are guide plates needed
I'm just curoius because when I had my heads build I had guide plates installed but when looking at another set of heads im thinking guide plates arent nessasary. I cant see how the push rods could fall out. The comp package said, 55-70 something have self alligning rockers and guide plates arent nessasary but these 83 heads look like they could hold the push rods inplace without guide plates. Am I on crack? Whats the deal.
Thanks.
SSC
Thanks.
SSC
#2
Supreme Member
I wouldn't think twice about adding guideplates when unneccessary. It's insurance. I think it really depends on the type of rocker arms and/or style of head. i.e. non self aligning need guideplates and self alligning could depending on the head. Im probably wrong. You're using hardened pushrods, right?
#3
Supreme Member
Thread Starter
Join Date: Jul 2001
Location: Pueblo Co
Posts: 3,974
Likes: 0
Received 0 Likes
on
0 Posts
Car: No more birdy
Yea im using hardened push rods, the ones that came with my crane solid cam kit. I'm just thinking guide plates are not nessasary for most applications. I would like to put some roller tip rockers on the Firebird but I dont want to pull the heads and as far as I can tell the heads are identical uptop. So I dunno.
SSC
SSC
#4
Supreme Member
Join Date: Jul 1999
Location: Loveland, OH, US
Posts: 18,457
Likes: 0
Received 15 Likes
on
15 Posts
Car: 4
Engine: 6
Transmission: 5
There are 3 possible systems for locating the rocker on the valve stem tip: the push rod slots in the heads, guide plates, or self-aligning rockers. One and only one of these should be in effect.
If your heads have slots for the push rods that are no more than .015" larger than the push rods, then you don't need guide plates or SA rockers. If the heads have large holes, then you need either plates or SA rockers. If your rockers are SA, then you need to have the large holes without plates.
The overall best system is guide plates and screw-in studs. You should use that system if possible.
If your heads have slots for the push rods that are no more than .015" larger than the push rods, then you don't need guide plates or SA rockers. If the heads have large holes, then you need either plates or SA rockers. If your rockers are SA, then you need to have the large holes without plates.
The overall best system is guide plates and screw-in studs. You should use that system if possible.
Thread
Thread Starter
Forum
Replies
Last Post