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Search found 994 matches

by PRH
Sun Feb 28, 2021 11:17 am
Forum: Engine Tech
Topic: Killer BEE valve seats.
Replies: 24
Views: 821

Re: Killer BEE valve seats.

That Addco fixture looks like it’s more suited towards production type work where you’re going to be doing a bunch of the same type of head one after the other. It’s pretty rare I do two sets of the same type of head back to back, and I’m often doing operations to both the chamber side and the top s...
by PRH
Sat Feb 27, 2021 7:51 pm
Forum: Engine Tech
Topic: Killer BEE valve seats.
Replies: 24
Views: 821

Re: Killer BEE valve seats.

I watched a couple of your vids. There was one where you were cutting a seat on the white VGS-20. Do you have any pics of the head mounting fixture? It looks totally different than what mine has. Also, it looked you had a last word indicator touching the head intake surface. What were you looking fo...
by PRH
Sat Feb 27, 2021 6:46 pm
Forum: Engine Tech
Topic: Killer BEE valve seats.
Replies: 24
Views: 821

Re: Killer BEE valve seats.

Had you started using those Killer Bee seats when you still had the VGS-20? I have a VGS-20 I bought new in 1996(white). I got into the 3D tooling in about 2005. With that tooling, I run the cutting speeds way slower than you did. With a std SBI seat and the old VSC tooling, I’ll be up around 150 fo...
by PRH
Sat Feb 27, 2021 3:18 pm
Forum: Engine Tech
Topic: Killer BEE valve seats.
Replies: 24
Views: 821

Re: Killer BEE valve seats.

Didn’t you used to have a VGS-20?

Did you use the 3D tooling with that machine?
If so, did you use similar cutting speeds to what you’re using now?
by PRH
Sat Feb 27, 2021 12:23 pm
Forum: Engine Tech
Topic: Killer BEE valve seats.
Replies: 24
Views: 821

Re: Killer BEE valve seats.

Chad...... what are you using for a guide and seat machine, and what tooling system for seat cutting?
Typical spindle speeds for those seats with your tooling?

Any mods to the rake on your cutters?
by PRH
Fri Feb 26, 2021 11:02 am
Forum: Engine Tech
Topic: Valve seat
Replies: 19
Views: 654

Re: Valve seat

FWIW, I have never had a head in my shop that was experiencing fracturing seats that had ductile iron seats. They’ve all been heads with powdered metal seats, and like I mentioned in my first post....... valvetrain control issues. Looks like your combo meets that criteria.......PM seats....... poor ...
by PRH
Thu Feb 25, 2021 12:59 pm
Forum: Engine Tech
Topic: Valve seat
Replies: 19
Views: 654

Re: Valve seat

Variations of this pic of yours is what I normally see. Imo, it’s a combo of a seat material that’s not suitable for the job at hand, exasperated by a lack of valvetrain control. At a minimum I’d be upgrading all the seats, and maybe look into a smoother cam profile. 3BAE5B89-ED7D-4F21-9BD4-C4BA170C...
by PRH
Thu Feb 25, 2021 10:06 am
Forum: Engine Tech
Topic: Valve seat
Replies: 19
Views: 654

Re: Valve seat

If it’s a powdered metal seat, I’ve seen several of them that had pieces start falling out of them. They have always been from a combination that had poor valvetrain control, and the repeated hammering finally took its toll. The ones I’ve seen actually start fracturing in the area just outside of th...
by PRH
Mon Feb 22, 2021 10:54 am
Forum: Engine Tech
Topic: Seeking info on valves for SB Ford M6049J602 aluminum heads
Replies: 11
Views: 274

Re: Seeking info on valves for SB Ford M6049J602 aluminum heads

I don’t get any hits on M6049 J602 for a head.

The head I remember being around back when Ferrea 3000’s were current was the J302 head.
by PRH
Mon Feb 22, 2021 10:06 am
Forum: Engine Tech
Topic: Seeking info on valves for SB Ford M6049J602 aluminum heads
Replies: 11
Views: 274

Re: Seeking info on valves for SB Ford M6049J602 aluminum heads

From ‘89-91 I was working at a shop that used Ferrea valves. That was the first time I had heard of them. How I remember it is there were only two series of valves at that time....... the 1000 and 3000 series. At some point they added the 6000 and 5000, and that’s when the 3000’s disappeared. My und...
by PRH
Sun Feb 21, 2021 5:47 pm
Forum: Engine Tech
Topic: 097 sbc cam
Replies: 24
Views: 1058

Re: 097 sbc cam

Is it really all that easy to put 1.7 or 1.8 rockers on a SBC?
Especially if it has factory old school heads.
by PRH
Sun Feb 21, 2021 5:38 pm
Forum: Engine Tech
Topic: Seeking info on valves for SB Ford M6049J602 aluminum heads
Replies: 11
Views: 274

Re: Seeking info on valves for SB Ford M6049J602 aluminum heads

They are definitely a Ferrea valve although I can not find that those part numbers in my 1999 catalog
Are there any 3000 series numbers in the ‘99 catalog?

The last time I saw any Ferrea 3000 series numbers was close to 30 years ago.
by PRH
Sun Feb 21, 2021 3:14 pm
Forum: Engine Tech
Topic: Seeking info on valves for SB Ford M6049J602 aluminum heads
Replies: 11
Views: 274

Re: Seeking info on valves for SB Ford M6049J602 aluminum heads

As I recall, many years ago Ferrea did have a 3000 series line of valves.

Since you have the valves in your hand, just measure them up and find something that’s close in a catalog.
by PRH
Fri Feb 19, 2021 10:57 am
Forum: Engine Tech
Topic: Brawler 750
Replies: 17
Views: 1003

Re: Brawler 750

It is a double pumper carb.
by PRH
Fri Feb 19, 2021 10:50 am
Forum: Engine Tech
Topic: Shelf life of unopened synthetic "racing" engine oil?
Replies: 51
Views: 1430

Re: Shelf life of unopened synthetic "racing" engine oil?

Do you suspect the milk farmers put fake expiration dates on milk, too, so you'll buy more?
Two differences.......
1- I’m not looking to ingest the motor oil, and
2- none of the oil bottles I have in my shop have an expriration date on them.