Just a technical point I want to sort out. Can you use the rocker gear from an A series head in conjunction with an A+ cylinder head ? meaning are they interchangeable or do you specifically have to use A+ with A+?
Cheers,
TasTyger
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| Author: | TasTyger [ Thu Mar 06, 2008 10:11 pm ] |
| Post subject: | A+ rocker gear |
Just a technical point I want to sort out. Can you use the rocker gear from an A series head in conjunction with an A+ cylinder head ? meaning are they interchangeable or do you specifically have to use A+ with A+? Cheers, TasTyger
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| Author: | Mick [ Thu Mar 06, 2008 10:12 pm ] |
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Yes, they'll come over fine. |
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| Author: | drmini in aust [ Fri Mar 07, 2008 9:46 am ] |
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Yes you can- forged, pressed steel, and sintered A+ are all interchangeable, on either an A or A+ head. Lift ratios I measured recently (with RE13 cam): Forged Cooper S 1.16:1 Sintered A+ 1.18:1 Pressed steel (850/998/1098) 1.21:1. All these were measured on the same rocker posts and with a new HD rocker shaft. Note if fitting smallbore rockers to a 1275 you usually have to put a flat washer next to the exhaust rockers, to align them better to the (offset) valves. <edit> typo |
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| Author: | mason [ Tue Mar 11, 2008 8:31 am ] |
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yep go for the pressed steel babys give better lift than A+ and are stronger 
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| Author: | drmini in aust [ Wed Mar 12, 2008 3:41 pm ] |
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mason wrote: yep go for the pressed steel babys give better lift than A+ and are stronger
After I've offset bushed them .044" they are 1.31:1 ratio. 
<edit> here's a pic- 
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| Author: | wyan [ Tue Mar 25, 2008 6:56 pm ] |
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Yep, I put my 1.5:1 minisport ones from my 998 A series to my A+ 1275. 
My 2 cents Cheers |
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