WS6FirebirdTA00

iTrader: (33)

Category: Accessories
Price: $1650
Part Fits: 93-02 Chevrolet Camaro, 93-02 Pontiac Firebird, Corvette, 04-06 Pontiac GTO, 04+ Cadillac CTS-V
Location (State): NC
Item Condition: Used
Shipping Information: Item Can be Shipped
Engine: LS1/LS6
LS Engine?: Fits LS Engine

Guys,

Putting some feelers out there on my AFR heads. I am working on building a 383 and I REALLY don't want to sell these things, but I don't want to go with a dished piston on the 383 due to the 59cc combustion chamber.

I am working on pulling the heads off now to get some pictures up (within a week or two).

I really hate to see these go, I feel like I have an emotional attachment to these! They made 480 RWHP through a 9 inch (and on one of the lowest reading Dynojet 248's around - by 10-15 HP) with a 230/232 cam (F13). The car ran 7.17@98.5 with that same setup (aruond 3700 lb race weight), but this was after I started losing compression due to ring issues on #7. The power was awesome!

I have had these on the car for around 15000 miles and I refreshed the heads less than 3000 miles ago with new AFR 0.650" lift springs (forget the part number) all individually shimmed to obtain ideal and consistent seat pressure. Since the refresh I have not been to the track or any hard driving honestly, most of it was spent taking my daughter out for rides so I wasn't trying to be stupid in the car.

I prefer to deal locally on this to avoid shipping, but will entertain it. I will also be selling my cam (post to come) that is in the car now. I had a lifter start to fail and lock on the F13 cam and put in a 236/244. I can work a deal on the entire setup with LS7 lifters and pushrods (which I will mark per cylinder upon removal).

As soon as I pull these I will post pictures. If I get some interest I will speed up the process

ZeroTraction

iTrader: (4)

What would these heads to for compression on say a stock LQ4 block?

WS6FirebirdTA00

iTrader: (33)

On the stock bottom LS1 I was running 11.59:1 with 0.040" gaskets and 1 cc reliefs, piston 0.005" out of cylinder at TDC.

WS6FirebirdTA00

iTrader: (33)

FYI - I calculate 12.2:1 on an LQ4, -0.005 piston to deck and flat tops without reliefs.

ZeroTraction

iTrader: (4)

Is 12.2 asking for trouble with 91-92 gas in a weekend fun toy?

WS6FirebirdTA00

iTrader: (33)

It also depends on your cam selection and youDCR. I was running 8.7:1 DCR.

918SS_Camaro

iTrader: (1)

I'm on the mobile app and can't see your price. Mind posting it for me? Thanks!

WS6FirebirdTA00

iTrader: (33)

$1650

Thanks

lols2k

Where in NC you located?

WS6FirebirdTA00

iTrader: (33)

I am near Charlotte Motor Speedway in Concord.

TX2000Ws6

I may be interested, I have an LS2 SBE with flat tops .007 out of the hole, and no valve reliefs. That's should be a healthy 12.3-12.4 I would think.
How could I calculate SCR and DCR with this comp cam.. 235/243, .621/.624, 113 ?

I am safe on PTV right now, although I don't know the exact measurement yet... I believe these afr205's actually provide more PTV than the stock 243's, I'm pretty sure I read that somewhere anyhow.

Bilster

iTrader: (21)

LQ4 pistons have a 6cc dish....do they not?

WS6FirebirdTA00

iTrader: (33)

There is a DCR calculator online you can download and install, I like to use that.

http://en.freedownloadmanager.org/Wi...ator-FREE.html

That cam is very similar to mine, but mine is on a tighter LSA with ground in advance. I had to flycut to leave enough room.

WS6FirebirdTA00

iTrader: (33)

BTW - I do have an old head and Isky fly cutting tools to sell...

WS6FirebirdTA00

iTrader: (33)

Updated original post with zip file of both heads.

Sale pending

WS6FirebirdTA00

iTrader: (33)

Sold!