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#1
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I was putting the heads back on my 66 389 tonight and noticed i had 4 bent pushrods. Summit only list one pushrod for 1955-1979 engines. That can't be right. i checked against a set of 400 pushrods i had and they are way longer. What gives? can i switch to the 400 push rods with no problem or do i also have to use the 400 rockers too?
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70orbitorange |
#2
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389 pushrod are shorter, I switched to 670 heads on my 389 block and had to go to the longer 400 pushrods. 62-67 are 8.687, 67-79 are 9.170. I know crane cams has them part# 28620-16.
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Illinois Outlaw Gassers 6.27@107 9.97@131 |
#3
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I bought crower 8.700 thick wall moly rods for my 389 when I was running 389 heads. Worked fine with my .327 lobe lift cam.
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'71 Holden HQ Monaro - 3850lbs race weight, 400c/i - 11.4 @ 120 '66 Pontiac GTO - 389, 4 speed street cruiser |
#4
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So who did you get the crane and crowler push rods from?
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70orbitorange |
#5
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Hey Franklin,
Summit and many other catalogs do not list all their parts in their catalogs. You have to call or search their website. Go to http://www.summitracing.com and at the top in key word search type in: Pontiac pushrods 389 The Crane pushrods for a 389 are the second ones listed. Jim
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"Never try to teach a pig to sing. It's a waste of time and it annoys the pig" |
#6
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I got my crowers from a local speed shop here in Australia. You're best bet is to get them from Summit in the states.
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'71 Holden HQ Monaro - 3850lbs race weight, 400c/i - 11.4 @ 120 '66 Pontiac GTO - 389, 4 speed street cruiser |
#7
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thanks guys.
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70orbitorange |
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