L98 113 heads
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Joined: Sep 2003
Posts: 93
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From: Warren, Oh
Car: 89 IROC
Engine: 355
Transmission: 5 sp., Alum Driveshaft
Axle/Gears: 3.73 Posi
L98 113 heads
On an l98 113 head, are the rocker studs pressed in or are they screwed in, and if screwed in, are they 3/8 or 7/16? also, can the corvette magnesium valve covers be polished up to shine like aluminum and hold their shine? thanks
Joined: Sep 2005
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Screw-in
The heads are 7/16"
Probably, if you clear-coat them; if left bare they'll corrode just like aluminum does
The heads are 7/16"
Probably, if you clear-coat them; if left bare they'll corrode just like aluminum does
Supreme Member
Joined: Sep 1999
Posts: 7,072
Likes: 13
From: Philly, PA
The bottoms of the studs where they screw into the head are 7/16" but the tops where the rockers slide on are 3/8", if my rapidly aging memory is correct. i.e. you need rockers designed or 3/8" studs.
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