Stock ZZ4 pushrods
05-11-2009, 10:48 PM
#2
Junior Member
iTrader: (1)
Join Date: Feb 2005
Location: southeastern Wa.
Posts: 89
Likes: 0
Received 0 Likes
on
0 Posts
Car: 89 RS.. 91 1/2ton 1500
Engine: 305 tbi
Transmission: 5 speed manual
Re: Stock ZZ4 pushrods
What is the length on them, stock .100 over , .200 over?
mrtater
mrtater
05-12-2009, 07:29 AM
#4
Junior Member
Thread Starter
iTrader: (2)
Join Date: Jun 2003
Location: Gainesville, FL
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Re: Stock ZZ4 pushrods
Heres the specs:
GM#:10241740
Material: 1010 steel
Diameter: 5/16"
Length: 7.122"
Usage: Hydraulic roller
Description: (1) Heavy-duty .060" wall, standard length. For use in 2nd design ZZ-series engines without guide plates.
GM#:10241740
Material: 1010 steel
Diameter: 5/16"
Length: 7.122"
Usage: Hydraulic roller
Description: (1) Heavy-duty .060" wall, standard length. For use in 2nd design ZZ-series engines without guide plates.
05-13-2009, 04:52 AM
#5
Supreme Member
iTrader: (3)
Join Date: Sep 2006
Location: sunny so cal.
Posts: 1,531
Likes: 0
Received 1 Like
on
1 Post
Car: 1990
Engine: 305
Transmission: 700r4
Axle/Gears: stock
Re: Stock ZZ4 pushrods
THEY ARE GREAT RODS. GOT A SET OF THEM WITH MY ZZ4 CAM - THE BEST. SOMETIMES ALL THAT R&D REALLY WORKS.
sorry - did not see that i was shouting.
sorry - did not see that i was shouting.
05-13-2009, 06:43 AM
#6
Re: Stock ZZ4 pushrods
The set out of a ZZ3 mtr measured 7.194. Maybe the ZZ4's are different pushrods?
Does not quite make sense being as they both use the same cam, unless the ZZ4 uses a different leght lifter, which I doubt. Used a set of harden aftermarket pushrods in my ZZ3 mtr and they measured 7.200.
Assembled a 350 Vortec roller mtr and used shorter lenght Comp push rods at 7.150.
IMO. 7.122 inch for those ZZ4 rods is a typo.
Does not quite make sense being as they both use the same cam, unless the ZZ4 uses a different leght lifter, which I doubt. Used a set of harden aftermarket pushrods in my ZZ3 mtr and they measured 7.200.
Assembled a 350 Vortec roller mtr and used shorter lenght Comp push rods at 7.150.
IMO. 7.122 inch for those ZZ4 rods is a typo.
05-13-2009, 06:48 AM
#7
Junior Member
Thread Starter
iTrader: (2)
Join Date: Jun 2003
Location: Gainesville, FL
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
Re: Stock ZZ4 pushrods
The zz-zz3 did have different pushrods. I forget the part number for the older stuff but they were for guide plates. The ZZ4 has self guided rockers which is why they changed them. From what I read both GM products are good. As for the length difference, not sure. Maybe different heads?
Maybe the length is a typo but its off GM's site.
Maybe the length is a typo but its off GM's site.
Trending Topics
05-13-2009, 11:24 AM
#8
Re: Stock ZZ4 pushrods
This ZZ3 mtr had wider than normal push rod guide plates, along with self aligning rockers.
Always thought that ZZ4's used the same valve gear, (except for valve springs/retainers) set-up.
They both use the 113 Corvette D exh port head.
Always thought that ZZ4's used the same valve gear, (except for valve springs/retainers) set-up.
They both use the 113 Corvette D exh port head.
Thread
Thread Starter
Forum
Replies
Last Post
Genopsyde
Engine/Drivetrain/Suspension Parts for Sale
3
10-07-2015 08:35 PM
