working on a 3 cylinder perkins diesel head. All the valves have dish shaped or concave heads. the original were flat. Got them from Qualcast.They are the correct number and do fit. They are bound to lower the compression some. is this what replacements are going to?Think a difference will be noticed? Don’t know what other brands are like.
Replacement valves have dish heads?.
November 30th, 20093-D fast cut system
November 30th, 2009I am thinking of purchasing a 3-D fast cut system for my wynonna seat and guide machine. However I am not sure how well it will work. Before I spend $1200.000 I would like to get some more information on this unit. Thanks for all your help.
reducing chamber volume
November 30th, 2009i have a set of closed chamber big block chevy heads. i have checked the chamber volume at 102 cc’s. i want to reduce the volume to 95 cc’s. how much do i have to mill off to attain this figure? thanks
292 heads
November 30th, 2009Hii have a pair of some old #292 chevy cylinder heads that is stamped with mondellos porting service and a number #22174. Is there innformation available regarding flow numbers what application they where for when they where portet etc
Thanksmartin.
v twin vavle springs
November 30th, 2009Currently running HVS-6000-7SG vavle springs with 211 Screamin Eagle cams 10.25 SE pistons springs are very loud especially around 2300 rpm
Sioux 1702 stone holders
November 30th, 2009Is or was there a tool to remove the caps on the Sioux 1702 stone holders? I think something like a Tor x bit in a 3/8 impact would work. Are the bearings in them a common bearing size? Thanks
Honda XR 200 head
November 30th, 2009Hello
I would like to buy a kit for re-doing my Honda motorcycle heads. I believe I need a 31 46 and 61 degree cutting heads for a 25mm and a 30 mm valve seat. My valve guide is a 5.5mm id. What can you put together for a kit to work for me. I can do all the cutting by hand I don’t need a power cutter.
Thanks
derrick
3D cutter selections
November 30th, 2009if you was 3D cutting int and ex seats in aluminum heads like the dirt latemodels use what would you suggest would be the best picks for cutters joe? and what kinda seat widths do you like .040-.050… ps brodix usually type heads
Bronze valve guides
November 30th, 2009I just noticed that my bvg372 quides are tapered!?!? This is probably normal but I don’t know which way is up. I have always installed them from the valve chamber end.
Thanks for answereing dumb questions too:)
Honda CBX Exhaust seats
November 30th, 2009I would like to touchup the exhaust valve seats for a 79 Honda CBX motorcycle. What would you recommend for Neway cutters to do this job? The exhaust seat is 25mm OD. The max dia for a cutter to do the 32 deg top cut cannot be larger than 26mm or it will cut into the side of the head.
Angles are 60 45 and 32
Thanks you