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03-24-2013, 04:26 PM #1VIP Member
- Status
- Offline
- Join Date
- Mar 2012
- Name
- Ben
- Vehicle
- 1994 Z28 Camaro
- Location
- Erie, PA
- Posts
- 195

Help lining up pushrods and guideplates on 21* heads.
So I'm running the new 21* Trickflow heads. The valves on these heads are spaced slightly farther apart than a stock head. My pushrods come out from the lifter to through the guideplate notches and to the rocker arms at an angle, thus slightly turning the rocker arm so that with each pair of rocker arms, they are not parallel with each other. They are sort of like this:
/ \ (Exaggerated). The pushrod also rubs on the guide plates. It appears a little material needs shaved off the guide plates.
Anyone else running these heads ever have this problem?
Thanks in advance for the help.94 Z28 A4 Forged 353ci
LE 21* 216cc Trickflows, LE Intake, LE 237/245 .603/.611 110lsa Cam, 1.6 Pro Mags, Lid Conversion, 58mm TB, 44#inj, LT's, Dual 3" cutouts, Magnaflow CB, EWP, AC!, 3.73's, Drag Radials, LCA's, NOS wet kit, prog. controller, Performabuilt trans and 3800 converter
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03-27-2013, 12:57 PM #2
what guide plates are you using?
1994 Camaro Z-28 M6
LE 242/248 cam,Crower split ratio rockers,AI 23*Trick Flow heads,JetHot longtube headers,Borla exaust,ewp,pro5.0,hybrid TNT wet kit.
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03-27-2013, 01:02 PM #3
You could always go with this option:
http://www.summitracing.com/parts/rhs-4837-8/overview/94 Z28 LT1 M6 - SOLD
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03-27-2013, 01:14 PM #410 Second N/A Club
- Status
- Offline
- Join Date
- Sep 2008
- Name
- Josh
- Vehicle
- 96 Z28
- Location
- Holden, MO (KC)
- Posts
- 2,867

I used Isky adjustable guide plates, mocked them up and torqued the studs. Once everything was adjusted where it needed to be after being torqued I tacked the plates together. That's what AI suggested to me.
-Josh
co-owner of BDBRacing.com
NMCA OC 9004
96, N/A 385, Holley EFI, Faceplated M6, AI TFS heads, LE SR cam, MWC Fab 9
10.16 @ 136 1.50 60'........still workin on that 60' shootin for 1.4's!
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