Don Terrill’s Speed-Talk

I've got it at 49*. Ford's print has 48.45-49.15 variation.

Post is from 2009

Not all pumps are run at half speed.

rgalajda wrote: ↑Sat Jan 13, 2024 7:24 am

leahymtsps wrote: ↑Sat Jan 13, 2024 7:05 am They were doing that 15 yrs. ago and still doing it today. That is at least in endurance applications.

Doing what?

Splitting

They were doing that 15 yrs. ago and still doing it today. That is at least in endurance applications.

Seems like it would be too much oil once up to operating temperature. Genuinely curious, does the timing chain really need that much oil in an endurance/street application? Hi Bill: FWIW, a closer look at OE L31 350 / L30 305 blocks' Front oil gallery with OE pressed-in cup plugs ... OE drilled fro...

What is slightly chamfer ? How slight? If you check the seal surface area at the block - cap parting line, they are always sharp from align boring - honing. That sharp edge will grab the Orings and either cut, split or distort them to where it stretches the part in the block leaving a majority on t...

fabr wrote: ↑Wed Dec 20, 2023 7:37 pm I've looked all over and all I can find is this. Amazing how little info there is to be found on them. Hard to read but since you have used them, do you agree?

Personally, I've never seen these instructions. Yes, I would agree with them.

Make sure you chamfer the block - cap slightly so the o rings won't get damaged when tightening
the cap down.
Install the seal dry.

Take a .030 - .060 spring shim that fits both the retainer and ht. mic., (id fits retainer - od fits mic)
install the shim between the 2 of them,
add thickness of shim to whatever the mic records

mag2555 wrote: ↑Wed Aug 30, 2023 7:41 am In NY the heading on the traffic ticket is titled Unsafe start.

I’ve got many of them in the passed!

I got 1 of them in 1970.

Tom

I'm sure it varies from block to block and manufacturer to manufacturer, but does anyone have any data on what type of gains have been achieved by blueprinting lifter bore locations? Thanks, Joel My understanding is there are significant gains by doing so on Super Stock Hemi engines. Chrys. blocks ...

Centroid
HAAS
Rottler
Rmc
T&S
Miltronics
Trump
Herco
ect, ect, ect

Kind of a vague question, are you asking about machine (cnc) or a fixture such as the one BHJ
makes?

If you're talking stock blocks, some of the older stuff is off so far, it's hard to believe. Aftermarket blocks are better but occasionally you come across 1 that is wrong, sometimes only on 1 side. The biggest problem is when the bores are tilted, or the Y axis is wrong. As far as the X axis, bores...