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1970 firebird Esprit Rocker ?. 350 Engine


zeeman4715
04-07-2007, 11:57 PM
Hey everyone, My question is how tight do i tighten an exaust rocker and an intake rocker. Is there any special way to tighten them like when im putting new ones on? Thanks alot.

jjsfollys
04-08-2007, 11:30 AM
****Deleted by the author****

Morley
04-08-2007, 02:12 PM
Which 350 do you have? Chevy? Pontiac? Olds? Buick? They are NOT all the same for "rocker adjustment", some of them are not adjustable. A 1970 SHOULD have a Pontiac 350 in it (unless someone swapped it out) and they are NOT a small block and the valve lash is NOT adjustable like some engines. The rockers are held down with a bolt that gets torqued. The rocker "stud" is cast into the heads and the rocker "ball" is then machined into the top of the stud.

jjsfollys
04-08-2007, 05:00 PM
Ouch. I apologize to anyone that feels they have been misled.

Morley
04-08-2007, 05:22 PM
Ouch. I apologize to anyone that feels they have been misled.
No need to apoligize. The procedure you gave is correct and might be what he needs if someone put a SBC in that car.
There's no need to apologize for trying to help someone.

zeeman4715
04-08-2007, 09:37 PM
It has a pontiac small block 350 in it. 8 cyl. 5.7 liter. what i need to know is when i put on a new rocker, how tight should i put the bolt on? Is there any way to tell if i've tightened it too much or too little?

Morley
04-08-2007, 09:52 PM
It has a pontiac small block 350 in it. 8 cyl. 5.7 liter. what i need to know is when i put on a new rocker, how tight should i put the bolt on? Is there any way to tell if i've tightened it too much or too little?
Ok, you need a torque wrench to make sure you get it right. You should be able to rent one from a parts store. The torque is 20 ft/lbs. Check this page for most of your torque specs. http://boxwrench.net/specs/pont_265-455.htm

BTW, Pontiac's engines aren't smallblocks,nor are they bigblocks. All of their engines had the same external dimensions...which were close to a bigblock chevy.

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