PUSHRODS

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NewbeewithGT

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Sep 30, 2007

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#1

• Sep 30, 2007

• #1

I am going to purchase roller rockers for my 94 GT and i was wondering if anyone could tell me the stock pushrod size for my motor? I need to know to be able to purchase these and i want to purchase them before i tear into my car.

Also what all needs to be done when trasitioning to roller rockers? Any input would be great!

 

85_SS_302_Coupe

it sucks (I know) to be on the receiving end

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#2

• Sep 30, 2007

• #2

I *think* it's 6.25 inches but you're always best to use an adjustable pushrod checker and make sure. You might wanna go with hardened rods while you're at it just for the added strength.

 

5spd GT

"the 5.0 owns all"

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#3

• Sep 30, 2007

• #3

6.272" is the stock size.

 

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NewbeewithGT

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#4

• Sep 30, 2007

• #4

Thanks for the input! What about what is the diameter for the pushrods?

 

5spd GT

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#5

• Sep 30, 2007

• #5

5/16"

 

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NewbeewithGT

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#6

• Sep 30, 2007

• #6

The roller rockers i have been finding online all have the options of 3/8 and 7/16

 

5spd GT

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#7

• Sep 30, 2007

• #7

NewbeewithGT said:

The roller rockers i have been finding online all have the options of 3/8 and 7/16

Click to expand...

Pushrods and the studs (3/8" or 7/16") that the rockers 'rock' on are different.

The stock pushrod is 5/16" in diameter.

The roller rocker options that you listed are for the stud thickness. 7/16" is the better of the two options, because of the added strength.

The roller rocker and stud size needs to match, i.e., you need 7/16" rockers and 7/16" studs to screw-in your heads.

The pushrod thickness of 5/16" has no relation

 

troyGT03

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too close to memphis,tn

Sep 30, 2007

#8

• Sep 30, 2007

• #8

if you have a 94 GT you dont need to change pushrods unless you have your heads machined for guideplates. if you are just adding rr then no changes are required.

 

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NewbeewithGT

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Oct 1, 2007

#9

• Oct 1, 2007

• #9

I got to thinking about that last night when i was trying to sleep i had those two mixed up. So is the stud size on stock 7/16 or what will i have to do to trasition to that as well?

Thanks for the previous clarifications

 

5spd GT

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#10

• Oct 1, 2007

• #10

Well, if I recall I believe STOCK pedestals are 5/16". Common upgrades are 3/8" and 7/16". I'm pretty sure you will need machining to do that Someone should be able to help you. I'm not all that 'up' on pedestal mounted rockers.

 

PUNISHER RACING

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Oct 1, 2007

#11

• Oct 1, 2007

• #11

6.250 to 6.272 depending on manufacturer and all you need is a set of pedestal mount 1.6 or 1.7 roller rockers. the stock thread size is 5/16-18. you can also buy a staggered set of 1.6 intakes and 1.7 exhaust rockers. that 1.7 on the exhaust helps out with those restrictive stock head ports. my 2 cents