teardown the 406, I get 2-surprises - Lateral-g Forums

Project_Gotham · #1 11-05-2006, 11:11 PM

Ok so I order new ceramic headers and flowmaster American Thunder system for my 406ci Edelbrock EFI 72' Camaro SS. A bad surprise turned into 2 good ones!
Well after removing the old hooker headers I noticed that some of the bolt holes for the headers are stripped. So I tear off the intake to remove the heads to get them repaired. As soon as I pull the intake I see Retro-fit Roller lifters. I scream out " It's a roller motor"!
Some of you might remember me posting about converting over to a roller cam. Well all i have to do is order the roller cam I want now.

Surprise #2:
I noticed when I removed the valve cover that the heads had canted valves like a big block. I cannot find a name on the heads but I do have serial numbers on them. I took them to a local speed shop and they were speechless, they said that they have never seen such a drastic offset on the intake valve(said looked like 10 degrees), but told me that they are probably trick-flow twisted wedge race heads, or AFR's. I will post pics tommorow of them. Maybe some one can indentify them.

MarkM66 · #2 11-06-2006, 08:38 AM

Cool!

Yeah, they're probably TFS heads.

I don't think AFR made a non 23* head for sbc.

Post the numbers off the heads.

rocketman · #3 11-06-2006, 04:09 PM

Could be Dart or Brodix

Project_Gotham · #4 11-06-2006, 10:23 PM

Here are the numbers: Maybe someone can help
head 1: SN 14901
head2: SN 14617-14666
I'm getting them rebuilt .I have no clue why someone painted them??? Sorry about the crappy pics. will take more during the day.

**Ummgawa** · #5 11-09-2006, 02:27 PM

"I scream out " It's a roller motor !

hopefully not during sex.

rocketman · #6 11-09-2006, 06:03 PM

Look like Gm Bow-tie heads

KUL FIR CHICK N · #7 11-15-2006, 05:35 AM

Those are trick flow twisted wedge heads. I'm not positive, but I don't think they make the twisted wedge heads anymore. They were a pretty good street head, but I think the geometry destroyed valvetrain parts.

DaCajun · #8 11-15-2006, 12:46 PM

Yep,

Those are Trick Flows for sure. I had a brand new set of them and sold them. Not a bad looking head but needs a special piston to work right. Here's what new ones look like.

-Dave

Project_Gotham · #9 11-15-2006, 04:32 PM

Thanks for helping me out DaCajun. What kind of piston does it take ????

I had the heads redone. I will post pics when I get them back ,soon I hope. They had a couple of slightly bent valves. They had to have a company custom make them due to they're irregular short stem.