Author Topic: 1967 302  (Read 7887 times)

booya420

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1967 302
« on: January 14, 2009, 05:13:08 AM »
i was recently assembling the 302 for my z and noticed that on the top of the block behind the intake there is a hole about 1 1/2 inch in diameter and to the left of it there is a 3/8ths threaded hole. what is this used for? this is not the hole for the distributor, the intake does not cover it. usually there is a smaller hole there for a oil preasure line. any ideas?

bertfam

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Re: 1967 302
« Reply #1 on: January 14, 2009, 05:54:21 AM »
It's for the CRANKCASE VENT CAN (more realistically, an oil separator can).

1967 was the last year for these and you should have something in your spare parts box that looks like the device in the link above.

HERE'S a link showing more pictures and a great explaination from John.

Ed
« Last Edit: January 14, 2009, 06:08:51 AM by bertfam »

booya420

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Re: 1967 302
« Reply #2 on: January 14, 2009, 05:29:57 PM »
so the z 28 s used this vent tube aswell as the pcv in the oil fill tube?

Ron C.

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Re: 1967 302
« Reply #3 on: January 15, 2009, 01:37:17 AM »
here is a pic of my 67z motor
67Z/28,67RSZ/28,71SS454CHEVELLE.

booya420

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Re: 1967 302
« Reply #4 on: January 15, 2009, 02:36:42 AM »
thanks a million for all the help guys. i can stop scratching my head now.

tom

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Re: 1967 302
« Reply #5 on: January 15, 2009, 12:36:15 PM »
Actually, I beleive it was replaqced by the pcv system in 1968.
69 X11 Z21 L14 glide
looking for a 69 export model (KPH) speed
o

deejaygee

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Re: 1967 302
« Reply #6 on: January 15, 2009, 06:22:37 PM »
Paragon Reproductions (www.paragonreproductions.com) sells the vent tube for 1967 302 engines, depending on whether or not you have a California emissions car. Assembly is shown in the RPO Z28 section of the 1967 Camaro factory assembly manual.




elcamino72

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Re: 1967 302
« Reply #7 on: January 21, 2009, 12:37:06 AM »
This is also called the road draft tube and yes it was replaced for the 1968 model year by the more conventional PCV system.

 

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