Author Topic: harland sharp rocker arms push rod  (Read 247 times)

0 Members and 1 Guest are viewing this topic.

Offline wes tanner

  • Occasional Poster
  • **
  • Joined: Feb 2004
  • Location: bonaire
  • Posts: 183
harland sharp rocker arms push rod
« on: February 12, 2019, 11:16:37 am »
Got my harland sharp rocker arms and ordered the edelbrock rocker stud kit.But still up in air on push rods.What push rods do you guys use?Checked length with old adjustable push rod  used old rocker bolts to bolt rockers down.Seems push rod on number 7 cylinder seems to be a little long.Measures from end to end 9 and 11/32.   From lifter tip end to bottom of cup 9"  and 1/32.Do they make a mock up adjustable rod to get length perfect?Also where can i get  valve cover spacers so i can run my stock valve covers.One more question should i run my tins the piece under rockers or do away with them?Sorry so many questions but im still learning alot.Thanks Wes

Offline 70cj428

  • Registry Supporter
  • Fanatic!
  • **
  • Joined: May 2007
  • Posts: 1,409
Re: harland sharp rocker arms push rod
« Reply #1 on: February 12, 2019, 12:29:11 pm »
You can buy an adjustable pushrod to check the length you need from a lot of places. Make sure you order one that has the right ends you need ( Ball-Ball or Ball-Cup) and in the length range you need. On an FE with adjustable rockers the pushrod length isn't as critical as the point of contact between the roller tip and the valve stem is determined by the stand height on an FE and not the pushrod length like a small block. The other issue you will run into is actually measuring the length of the adjustable pushrod once it's adjusted as you need a 12" dial caliper or a really big micrometer. You actually may be able to just mail the adjustable pushrod to the company making them and they could measure it .

Trend or Smith Brothers are to good places to have pushrods made.

Here's one place to get adjustable pushrods …...


https://www.summitracing.com/search/department/tools-shop-equipment/section/engine-related/part-type/pushrod-length-checkers?N=4294951606%2B4294951367%2B4294886718&SortBy=Default&SortOrder=Ascending

Your tins may interfere with the Harland sharp stands, they'll also change the point where the roller tip touches the valve stem so I wouldn't use them unless you need to shim the rocker stands …

Someone makes the spacers, looking for the guys name , I got it somewhere …

John
« Last Edit: February 12, 2019, 06:49:26 pm by 70cj428 »

Offline RoyceP

  • Fanatic!
  • *****
  • Joined: Dec 2003
  • Location: Dallas
  • Posts: 2,791
    • http://www.theclassiccougarnetwork.com/xr7g
Re: harland sharp rocker arms push rod
« Reply #2 on: February 12, 2019, 04:41:23 pm »
I typically measure and then order from Smith Brothers. Typically I get them .075" shorter than stock solid lifer pushrods. But your engine might need them shorter or longer, it all depends on the machine work, valve stem lengths, valve seat condition, etc etc etc........
1910 Model T Ford Touring Red
1915 Model T Ford Touring Black
1914 Model T Ford Touring
1917 Model T Ford Torpedo Green
1968 Mercury Cougar XR-7 GT-E Green 427 W Code
1968 Mercury Cougar XR-7 428CJ R code 3.91 C6

Offline rockhouse66

  • Registry Supporter
  • Fanatic!
  • **
  • Joined: Aug 2005
  • Location: Western NC
  • Posts: 4,189
Re: harland sharp rocker arms push rod
« Reply #3 on: February 12, 2019, 09:01:08 pm »
I also use Smith Brothers and you need to measure with a couple of adjuster threads showing below the rocker arm and then allow for another 3/4 turn or so for the hydraulic lifter preload.

Jim

'69 Grande CJ

Offline lr68cj

  • Occasional Poster
  • **
  • Joined: Nov 2003
  • Location: Piscataway,nj
  • Posts: 126
Re: harland sharp rocker arms push rod
« Reply #4 on: February 14, 2019, 12:21:23 pm »
Don't forget to check clearance in the pushrod hole in the intake manifold. Top and bottom. Some will touch at the bottom of the intake. Don't ignore the open areas either. A lot of aftermarket castings are way off.  I've seen pushrods hitting all over the place, especially 3/8" dia. pushrods.

Offline 68stangcjfb

  • Registry Supporter
  • Shadetree Mechanic
  • **
  • Joined: Dec 2005
  • Location: Long Island New York
  • Posts: 398
Re: harland sharp rocker arms push rod
« Reply #5 on: February 14, 2019, 12:22:37 pm »
+1
68 Mustang FB CJ auto 3.91s Tasca Car,  68 Torino FB GT CJ 3.91s, 67' Fairlane SW 428 CJ 4sd, 65 Falcon Sedan Delivery 5.0 aod, 58 T bird 352 auto, 61 T bird 390 auto, 95 T bird SC aod, 68 Torino 4dr 302 C4, 64 falcon sprint conv. 4 sp. 2 '57 T Birds.

Offline Chris Teeling

  • Moderator
  • Fanatic!
  • *****
  • Joined: Nov 2003
  • Location: Connecticut
  • Posts: 2,303
Re: harland sharp rocker arms push rod
« Reply #6 on: February 16, 2019, 08:44:54 pm »
If you go with the Smith Brothers pushrods, you can usually get away with 5/16 dia.

This helps a bit with the clearance issues.
1968 1/2 Fastback
1988 LX 5.0 Hatchback