We are currently running on the new domain and server: www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

Search found 874 matches

by piston guy
Mon Jun 22, 2020 12:24 pm
Forum: Engine Tech
Topic: Early prostock iron heads.
Replies: 30
Views: 1673

Re: Early prostock iron heads.

Cylinder Heads America was out here in Canoga Park. They were primarily known for SBC heads but obviously did others. 'Vanes" were popular add ons to 351C intake ports. These would not be from Dyno or Glidden.
by piston guy
Fri Jun 19, 2020 12:09 pm
Forum: Engine Tech
Topic: Top Guided Piston Pin Spacers? Who makes them?
Replies: 20
Views: 717

Re: Top Guided Piston Pin Spacers? Who makes them?

I have seen fragments of broken Spirolocks saw through piston rings on both sides of a piston since it was able to go to the other side through the hole in the pin. The "band" below the pin kept it captive and it stayed there "hammering" its way around until the engine began smoking. Inertia at 8,00...
by piston guy
Thu Jun 18, 2020 4:48 pm
Forum: Engine Tech
Topic: Top Guided Piston Pin Spacers? Who makes them?
Replies: 20
Views: 717

Re: Top Guided Piston Pin Spacers? Who makes them?

The lock "fragmenting" or inertia making it "saw" through the pin itself. Neither of which is good.
by piston guy
Thu Jun 18, 2020 12:28 pm
Forum: Engine Tech
Topic: Top Guided Piston Pin Spacers? Who makes them?
Replies: 20
Views: 717

Re: Top Guided Piston Pin Spacers? Who makes them?

Here's a random idea I ran across. A local shadetree, who's not entirely without experience, says he just takes spirolox, pulls them out like springs and puts them between the piston and rod. He's built several that way and never had a comeback. What say the experts here? A very bad idea. I am surp...
by piston guy
Wed Jun 17, 2020 5:57 pm
Forum: Engine Tech
Topic: Top Guided Piston Pin Spacers? Who makes them?
Replies: 20
Views: 717

Re: Top Guided Piston Pin Spacers? Who makes them?

No he's looking for pin boss spacers to go to "piston guided" rods. Because of the custom nature ( careful measurements MUST be taken ( pin boss span on the piston , rod width and "offset" if any) they are usually made by the engine builder. They also have to be "snug" on the pin or inertia will des...
by piston guy
Wed Jun 17, 2020 2:46 pm
Forum: Race Cars & Parts - For Sale or Wanted
Topic: WTB - set of Ford 385-series wrist pins
Replies: 4
Views: 301

Re: WTB - set of Ford 385-series wrist pins

Pin diameter for a 429-460 is 1.040. length varies from original to aftermarket ( shorter) and only matters if locks are used.
by piston guy
Wed Jun 10, 2020 10:55 am
Forum: Engine Tech
Topic: Applying the DV 128 formula on a Supercharged engine
Replies: 211
Views: 3759

Re: Applying the DV 128 formula on a Supercharged engine

"I" would simply ask Mike what to run.
by piston guy
Mon Jun 01, 2020 12:09 pm
Forum: Engine Tech
Topic: Experience w/ Rebco Machine piston mods?
Replies: 28
Views: 4485

Re: Experience w/ Rebco Machine piston mods?

Eric has done work for me for over 30 years . Back then he worked for Ron Baxter who created Rebco. Ron was famous for doing extremely high quality work at affordable prices. When Ron decided to retire , Eric bought the business and moved it closer to his home in Wichita. His work is second to none....
by piston guy
Thu May 28, 2020 3:45 pm
Forum: Engine Tech
Topic: Kinsler mech. Injection SBF
Replies: 7
Views: 641

Re: Kinsler mech. Injection SBF

One of the things I enjoy is oldskool tech. And I’ve been pounderung around magneto ignition and mech injection. A guy is selling a Kinsler manifold for SBF 8.2’’ for 1000$, and that might be a good price for such an item. Is there something I should look out for on this piece? The obvious might be...
by piston guy
Tue May 26, 2020 1:17 pm
Forum: Engine Tech
Topic: Mercury (Ford) 289 marine, worth buying?
Replies: 17
Views: 948

Re: Mercury (Ford) 289 marine, worth buying?

6 bolt, No marine 5 bolts. NOTHING special on marine "destined" blocks , standard production parts . Different cams , carbs and distributors.
by piston guy
Fri May 22, 2020 2:41 pm
Forum: Engine Tech
Topic: REBCO MACHINE STILL OPEN?
Replies: 7
Views: 1420

Re: REBCO MACHINE STILL OPEN?

He's doing work for me right now. A little slow on turn around but no concern and the quality is worth the wait.
by piston guy
Thu May 21, 2020 4:05 pm
Forum: Engine Tech
Topic: Oil pressure vs volume
Replies: 100
Views: 3892

Re: Oil pressure vs volume

Steve I use two cover plates on my pumps as a dormer Ford engineer told me they found as the pressure increased , the cover would flex and bleed off pressure. Simple virtual no cost and I did see better pressure because of it. I do it to all of my pumps ( even aluminum ) except obviously those with ...
by piston guy
Thu May 21, 2020 12:04 pm
Forum: Engine Tech
Topic: Loaded valve train vs non loaded
Replies: 28
Views: 1111

Re: Loaded valve train vs non loaded

With a given OD and wall thickness , the longer the pushrod , the more it will flex. That is simple physics. So there is no "one" answer on wall and diameter. Compound ( canted) valve angles can have more change than an "inline" . Add obscene RPM and that changes the requirement. Nascar engines typi...
by piston guy
Thu May 21, 2020 11:38 am
Forum: Engine Tech
Topic: Oil pressure vs volume
Replies: 100
Views: 3892

Re: Oil pressure vs volume

Steve.k wrote:
Wed May 20, 2020 12:08 pm
So you had to do those mods to get the pressure?
It was standard practice in the late 70's and was already done when I bought the complete engine. I did not build it , I only rebuilt/maintained it after I got it.
by piston guy
Wed May 20, 2020 11:57 am
Forum: Engine Tech
Topic: Oil pressure vs volume
Replies: 100
Views: 3892

Re: Oil pressure vs volume

Steve, On my original aluminum block ( pass side lifter bushings only , main bearing restrictors) and I ran a std pump with the Ford /G&R high pressure spring. Oil pressure "at rpm" was always 60+ with aluminum rods. The pan was the Moroso "pro stock" pan. Cold pressure was always in the 80-90 range...