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#1
10-20-2010, 02:43 PM
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1.5" or 1.65" Rocker Arms ?
on '69 RAiii 48 heads?
Thanks, John |
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#2
10-20-2010, 02:49 PM
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Are you asking if that's what came originally or if you can use them? Originally, believe only RA IV & some HO heads got 1.65s. If you can use them? If you enlarged the pushrod holes, in most instances, yes, you can use them, though to be sure, you'd need to check retainer clearances, etc.
.
__________________
. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
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#3
10-20-2010, 03:10 PM
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Thank You, that answered both questions.
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#4
10-20-2010, 11:07 PM
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1.65's are going to raise the lift 10%, and sometimes there just isn't that much room to coil bind depending on the cam. As HWYSTR455 mentioned, you could also have retainer to seal contact.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon. |
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#5
10-20-2010, 11:15 PM
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The 1.65 rocker arms are exclusive to the '63 and earlier Super Duty engines and '69 -'70 RAIV.
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