Don Terrill’s Speed-Talk

You're betting a $2800 block and set of custom pistons vs a set of 50 year old stock rods so you can save $300 or so.

Make sure you have one of these thermostats. Too much flow from higher rpm will close a standard thermostat leading to a slow temp gain.

A few that I remember over the years are. BB Chevy stock cast iron 454 block and oval port heads solid roller cam was the same hot and cold. SB Chevy Dart block and 18 deg dart heads solid roller cam was .007 tighter cold. BB Chrysler Indy aluminum short deck block and solid cast aluminum 440-1 head...

Anyone have these, not in my AERA book? 2015-2017 5.2 voodoo engine GT350 heads

I'm doing a valve job on a set of 5.2 ford voodoo heads and just found that the exhaust seat is 40 degree. Does anyone have a part number for a cutter bit that will work on these seats?

Probably goes back to the first time somebody bent over a 6 inch burr and the grinder tried to kill him. That's my theory anyway.

Got in a 2011 2.4 direct injected block that needs to go oversize. Does this have an iron liner or is it coated aluminum. Mahle shows std .50 .75 and 1.00 mm over. Also do the cylinders move a lot like the LS and need a torque plate.

SOLD

Sunnen CV616 very good condition low use machine. Has manual dwell kit installed. Lots of extra stones, 12 extra filters, one set of roughing diamonds, and new u-joint ring on head. Have manuals and other paperwork with it. Pickup only Breese,IL 62230. $18,500.00 OBO 20220408_112530.jpg 20220408_112...

hoffman900 wrote: ↑Tue Mar 22, 2022 4:55 pm There are millions of OHC on bucket valvetrains out there still. They are “flat tappet”.

True, but those are large diameter lifter, no rocker arm to increase force on the lifter, and usually light spring pressures to start with. Apples to oranges comparing them to a BB Chevy engine.

Got some from CHE but have to trim .030 off of them.

Who would be able to do a set of seats quickly for titanium valves probably moldstar material. 2.460 register .325 thick
I've tried PPPC and they either can't or won't do them for me. Any other suggestions.

That was the smallest ex valve vs port size i could do, and the intake is as big as it can go without moving valve location. I got the cam info and it is running 224@.050 int and ex .578 int and .518 ex with 1.9 int and 1.7 ex rockers. Customer said it is getting a custom made intake and exhaust, so...

It's an antique pull tractor 4.375 bore 7.5 stroke 1600 rpm. I just did the head only. Here's what i got out of it. 1.900 intake valve 1.700 ex valve Lift Int EX .100 61.9 57.9 .200 121.4 115.8 .300 171.4 151.6 .400 202.3 176.4 .500 216.6 190.2 .600 219.0 195.7 .700 219.0 201.2

Anyone have a flow sheet for an International M propane head.