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#1
07-10-2016, 02:44 AM
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Rocker Arm Studs?
Is there anything our there that is really the correct 1970 LT1 rocker arm stud? By that, were all the studs for 70 Lt1's the same length or did they vary by application--i.e. Z28, Corvette or Yenko? I have found studs that are supposedly for 70 LT1's that are less than 1 and three fourths inches in length to some that are more than 2 and one half inches in length. Some are "press-in" and some are 7/16" screw in. My major concern in the "shoulder height". I need a few for my 70 Yenko.
Rick
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1956 Bel Air Nomad 1961 Ford Starliner, the "Tangerine Dream" 1963 Olds Jetfire, 1 of 13 Fluid-Injected & Turbocharged 1966 Dodge Hemi Charger the "White Elephant" 1970 Dodge Challenger R/T, the "Cream Dream Shaker" 1970 Nova Yenko Deuce 
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#2
07-10-2016, 01:24 PM
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Re: Rocker Arm Studs?
I may be wrong -- but I was under the impression that all LT-1s had screw in rocker studs. TAZ
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You've never lived until you've almost died -- for those who fight for it, life has a flavor the protected will never know!
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#3
07-10-2016, 01:36 PM
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Re: Rocker Arm Studs?
I believe GM LT-1 studs where push in, and have heard of them failing under too much spring pressure. Go with screw in studs.
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67 Z28, 67 RS/SS 396 Canadian, 73 Camaro Z28/LT Carolina Blue
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#4
07-10-2016, 01:48 PM
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Re: Rocker Arm Studs?
My 04D LT-1 has screw in studs
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69 camaro Z-28 burnished brown X-77 bought 1978 70 camaro Z28 forest green M40 black vinyl roof PROJECT 99 camaro SS Hugger Orange 6speed no t-tops 1 of 54 11 cts-v black diamond edition wagon 556hp GONE 15 camaro Z/28 white AC brand new
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#5
07-10-2016, 01:51 PM
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Re: Rocker Arm Studs?
I believe 1969 186 heads were pressed in studs and 1970 were all screw in studs
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69 RS SS L78 conv 69 RS SS ZL1 69 L78 Chevelle conv 69 L78 Nova 69 L34 Nova 67 SS Chevelle 73 Trans Am
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#6
07-10-2016, 02:28 PM
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Re: Rocker Arm Studs?
For what it's worth, my 70 186 heads are definitely 7/16x14 screw in's. It's the overall lengths of the studs that concern me the most. Some are less than 1 3/4 inches in overall length while others are more than 2 1/2 inches in overall length. Doesn't that change the "shoulder" height or configuration?
Rick
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1956 Bel Air Nomad 1961 Ford Starliner, the "Tangerine Dream" 1963 Olds Jetfire, 1 of 13 Fluid-Injected & Turbocharged 1966 Dodge Hemi Charger the "White Elephant" 1970 Dodge Challenger R/T, the "Cream Dream Shaker" 1970 Nova Yenko Deuce
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#7
07-10-2016, 03:30 PM
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Re: Rocker Arm Studs?
Another thing just occurred to me -- don't confuse LT-1 studs with LT1/LT4 studs ... they are different. The early 350s where LT-1s ... TAZ
__________________
You've never lived until you've almost died -- for those who fight for it, life has a flavor the protected will never know!
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#8
07-10-2016, 03:53 PM
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Re: Rocker Arm Studs?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ssl78</div><div class="ubbcode-body">I believe 1969 186 heads were pressed in studs and 1970 were all screw in studs </div></div>
This ^^^^^
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69 camaro X11, 56,000 miles, original HO paint 67 camaro SS/RS, Butternut yellow, bench, fold down
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#9
07-10-2016, 04:47 PM
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Re: Rocker Arm Studs?
Factory studs in 1970 are 3/8-24...not 7/16-14 right? 7/16 is a upgrade from B/B.
Dave 67 Nova Boy
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#10
07-10-2016, 05:11 PM
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Re: Rocker Arm Studs?
I may be wrong on this -- but the experts will chime in ... I believe the studs are 7/16 into the head and 3/8 for the rocker nuts ... TAZ
__________________
You've never lived until you've almost died -- for those who fight for it, life has a flavor the protected will never know!
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