Don Terrill’s Speed-Talk

Thanks for all of your replies! Although, no one yet has addressed how well these valves will hold up with race use AND an additional 5K miles a year of road use. Most of the time it also gets driven to the track.

Thanks ProPower Engines.

Anyone have anything else to add?

Screen Shot 2020-01-04 at 3.47.08 PM.png These Manley VW Type IV valves interchange with Volvo B18/B20 1969 to '74 valves. We road race a '67 Volvo 1800S about 700 miles a year and usually drive it about 5K miles a year on the road. The margins on these valves are only .062 and the intake valve hea...

Vizard.jpg unnamed (2).jpg A gentleman I met has this David Vizard modified 1.8L Volvo B18 pushrod head visible in the first photo which Vizard did for him 40-years ago in London, England. The second image shows a standard unmodified chamber. I'm ready to start on another head, with a new chamber a...

PICT0002-9.jpg PICT0003-6.jpg The basic design of these Volvo pushrod head ports was laid out in the late-1950s and of the two the exhaust port (lower photo) is the the most challenging to get to flow well as there is only so much that can be done to them because of the shape of the castings and th...

Thanks Erland, Your work is excellent as well and widely known in The Volvo world.

This head looks like a full out effort to makes lots of power. If you are willing to share what CR is this head?

Vizard.jpg unnamed (2).jpg A gentleman I met has this David Vizard modified 1.8L Volvo B18 pushrod head visible in the first photo which Vizard did for him 40-years ago in London, England. The second image shows a standard unmodified chamber. I'm ready to start on another head, with a new chamber a...

Thanks to all of you for your responses. We will only bull nose it and vee other end and remove as little material as possible, even though some do not believe in it. The flywheel is going to be changed from the original cast iron 22 lb lump to an 8 pound Fidanza piece we have and leave it at that....

Thanks to all of you for your responses. We will only bull nose it and vee other end and remove as little material as possible, even though some do not believe in it.

The flywheel is going to be changed from the original cast iron 22 lb lump to an 8 pound Fidanza piece we have and leave it at that.

Unless you have another reason to cut the counterweights I would have it reground first and then checked. Cutting the counterweights is liable to require adding weight back to get it to balance. Unlike a V-8 crankshaft yours has two rods directly opposite of the other two so I don't think your modi...

crank2.jpg Crank1.jpg This is a 1967 Volvo B18 1.8L crankshaft which is going to be used for vintage road racing on a variety of different tracks and hill climbs after it is ground and re-balanced. The standard rod journal dia. is 2.135 but it is going to be ground approximately .246" to 1.889...

The offset on SBC is .063 but, that isn't from the CL of the rod. It's the amount that the "thick" side of the rod is wider than the narrow side. In other words, if you take .063 off the thick side, the rod will be symmetrical about it's center line. I modify SBC, 400 rods, to use in 302 ...

Doesn’t the Mahle clevite bearing catalog pdf list the lengths of all their bearings? Thanks for the lead, it did check that PDF but maybe I missed that measurement. https://www.mahle-aftermarket.com/media/local-media-north-america/pdfs-&-thumbnails/catalogs-and-literature/engine-bearings/eb-40...

ptuomov wrote: ↑Wed Feb 05, 2020 1:48 pm Doesn’t the Mahle clevite bearing catalog pdf list the lengths of all their bearings?

Thanks for the lead, it did check that PDF but maybe I missed that measurement.

We need to know the amount of offset that SBC connecting rods have, and the width of an un-chamfered Clevite 1.889 Honda racing rod bearing. Have looked everywhere but both are hard to find. Thanks in advance for any help you can offer. I am pretty sure I am looking at the right one. CB1665HD .896 ...