Don Terrill’s Speed-Talk

Speedmaster is a POS company. Summit Is verging on it as well, selling this shit. https://www.youtube.com/watch?v=9dsHrSq8pso There will always be people who COPY someone else's successful part but, to actually put the originator's name on it and try to pass it off as the real thing, is just "...

If Summit had any integrity they would pull ALL the Speedmaster stuff off their shelves and never sell any of the Speedmaster stuff again.

I have a 440 Holmes wrecker body mounted on a 74 Chevrolet C30 chassis. Current setup is a Carolina Machine Engine High Torque 350 longblock, (whatever that consists of) with an Edelbrock Performer intake, 1406 Carb, HEI distributor and small headers. Sling wrecker is PTO driven off a SM465 transmi...

Speedmaster is a POS company. Summit Is verging on it as well, selling this shit. https://www.youtube.com/watch?v=9dsHrSq8pso There will always be people who COPY someone else's successful part but, to actually put the originator's name on it and try to pass it off as the real thing, is just "...

Walter , thank you for the clarification on the rod side clearance , can you give me an idea on the vertical clearance and what rod journal size would you recommend for a 706ci engine NA for starters. thanks again. I can't recommend anything like that 'cause I don't build them ... I have witnessed ...

mdabbott2009 wrote: ↑Tue Apr 09, 2024 2:20 pm Does anyone know any about these? There for sale fairly reasonable on Facebook post to be brodix *10

All I can say is that the Brodix 10 was a good head ... about the porting, I have no idea.

Why do you recommend .040 side clearance , that seems excessive to me , I would not want to exceed .025 to keep the rods from dancing from side to side , what would you suggest for vertical clearance , with what weight oil , also try the right side tomorro , your a little grumpy. Have a great day :...

nominal is 2.200 When running at about 7,000 RPM, a good steel 4340 crankshaft having a 5.300" stroke with that rod journal diameter will get about .035" shorter from end to end simply because of flex; be certain that the involved rods will have no angularity when running. Then the rod be...

Actually, with that probable 5.300" stroke, I would run minimum .040" rod side clearance and guide the rods side movement within the piston; (piston guided rods); similar to a 2-stroke. What diameter is the rod journal on that crank ? nominal is 2.200 When running at about 7,000 RPM, a go...

SBC, 406ci, 13:1 on E85, Dirt track engine, 1200 laps. Shaeffers 5-50 oil every 10 nights. Anyone here smarter than me? After the oil change interval results cam back every was really good except for a note of "high insoluables". I assumed race track dirt, It kept me up at night so I remo...

I got roped into building this using a myriad of parts. It is the biggest CI I have messed with and I am having some doubts about clearances. The patient: 706 bbc, 14.6, BME alum. rods, Pontiac heads, 300 shot of n2o, Dan Olson wet sump, vacuum pump, 2400 lb car, bruno trans. The rod bearing cleara...

After the "extended " additions are tig welded, I take an acetylene torch and blacken the entire area ... then ad oxy and heat that entire area until the soot disappears to anneal it, then cover it with cardboard so it cools slowly.

I have seen Larry Meaux weld up to an inch onto an intake runner divider. Is there any reason not to use 1/4 aluminum plate and weld that to the dividers instead? Then port and shape it accordingly? Thanks To extend a divider into the plenum area, I use 3/16" or 1/4" aluminum all the time...

I have an unknown solid roller cam we are going to try in my Son's sbc 377. Cam specs are 298@.020 266@.050 .445 lobe on the intake, 306@.020 268@.050 .420 lobe on the exhaust. Thinking the shift will be at 7500. 11/32 2.08 / 1.6 stainless valves. We have a rev kit. I have no idea what valve spring...

I take it you are talking like a 23 head with those low hp per inch listings? The ls has some decent port area and ssr height over some conv 23 heads. Valve angle is better in ls. Imo if perimeters of valve size stay same. Let's say 2.125 in both conv 23 and ls 15 deg. We used to make 750 hp with 2...