Mrd head

[800750]

Any one know or have any information on mrd girdle heads for 61x top end. Are they any good? And how do they hold up? Thanks

 

[augustaf]

They " hold up" and they are good, but were discontinued long ago. They are not anodized and might need an occasional polishing. They do not (!) have interchangeable domes, only came in one flavor and MRD Dave could increase the combustion chamber volume easily to specific requirements. If you are buying a used one, make sure it's been machined for the volume you need. They are similar in looks to the contemporary Riva models.