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Cylinder heads

Posted: Wed Apr 20, 2022 7:41 pm
by kevin s
My son has bought a bare 1275 A+ head looking at the parts to build it up the valve spring caps and collets are suprisingly expensive, does anyone know if the ones off a 998 A+ are the same?

Re: Cylinder heads

Posted: Wed Apr 20, 2022 10:15 pm
by philthehill
Here is some information;-
http://www.minispares.com/product/Class ... o%20search
Does your valves have a single or triple groove stems?
Are you intending to fit single or double springs?
Single and double valve spring caps are different. The inner spring needs a location washer for the bottom.

Re: Cylinder heads

Posted: Wed Apr 20, 2022 10:56 pm
by kevin s
Looks like if we get 3.56" long single groove valves which are widely available we can use the 1098 collets and caps we already have.