Author Topic: 1965 389/429 #77 heads  (Read 746 times)

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Offline Mikey D

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1965 389/429 #77 heads
« on: October 22, 2011, 03:58:31 PM »
#77 192/166 valves 68cc closed chamber heads, How would these act on a 350p stock bore. I can pick them up for 200bucks and shipping.

Offline Chuckles

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Re: 1965 389/429 #77 heads
« Reply #1 on: October 22, 2011, 06:38:21 PM »
Just some warning, you'll need the old style intake's as well since they're a different bolt pattern.

Offline Mikey D

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Re: 1965 389/429 #77 heads
« Reply #2 on: October 22, 2011, 06:54:25 PM »
ahhhh, crap

Offline Mikey D

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Re: 1965 389/429 #77 heads
« Reply #3 on: October 22, 2011, 07:02:31 PM »
ok, franks pontiac parts has a 65 intake for 140, being the engine is 74, i use my valley pan rite? That should be a pretty good upgrade in compression 68cc...the 11s 47/48/12/13s are all too high in my area..like 800 and up. Not good for my wallet. I blew a head gasket thats the only reason Im doing the head and cam upgrade.

Offline Chuckles

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Re: 1965 389/429 #77 heads
« Reply #4 on: October 22, 2011, 07:04:05 PM »
The valley pans should be the same. But, make sure you get the heads tapped for threaded rocker studs. If not, they'll pull out with the upgraded cam.

Offline Mikey D

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Re: 1965 389/429 #77 heads
« Reply #5 on: October 22, 2011, 07:28:47 PM »
yea I was thinking about using the threaded studs in my heads i have now and have the machine shop do the work for me