Stage 3 CNC Ported 853 LS1/LS6 Heads w/PRC Extreme Valve Springs ($700 Shipped)
10-22-2011, 07:24 PM
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Stage 3 CNC Ported 853 LS1/LS6 Heads w/PRC Extreme Valve Springs ($700 Shipped) Category: Racing Parts
Price: $700
Part Fits: 93-02 Chevrolet Camaro, 93-02 Pontiac Firebird, 04-06 Pontiac GTO, 04+ Cadillac CTS-V
Location (State): UT
Item Condition: Used
Shipping Information: Item Can be Shipped
Engine: LS1/LS6
LS Engine?: Fits LS Engine
I have a pair of Stage 3 CNC PORTED 853 Casting LS1/LS6 Cylinder Heads. These heads are 64CC and have approximately 5000 miles on them since being CNC'd. They had a valve job and brand new PRC Extreme Dual Valvesprings & titanium retainers installed about 100 street miles ago. I purchased these used about 2 years ago, and although I do not know who did the CNC work, I do have flow numbers from a shop that bench flowed them locally.
Lift Intake Exhaust
.100 72 66
.200 140 127
.300 202 160
.400 285 198
.500 294 226
.600 309 230
I never got dyno numbers, but combined with a Thunder Racing T-Rex Camshaft, a 90MM Intake/90MM Throttle Body combination and flycut pistons, the car went 12.20's here in Utah. Probably would have gone close to mid 11's at sea level.
A quick cleaning wouldn't hurt. I cleaned them up a little, but a little time in the hot tank and they'd probably look close to new. Pictures are below.
The CNC work alone on these is worth close to $900.00. There is absolutely nothing wrong with these heads. Simply bolt them on and go. If you have any questions or concerns, feel free to ask and I will answer to the best of my ability. I'm likely going back to a more stock setup, so I need to get these sold.
I do accept PayPal and am willing to ship. The heads will be shipped via FedEx Ground to keep costs down.
Note the pictures were taken BEFORE the PRC Dual Extreme Valve Springs were installed. HEADS WILL COME WITH PRC DUAL EXTREME VALVE SPRINGS INSTALLED.
If I don't get any interest, I'll probably just continue to run them. Thanks for looking.
Brad
Last edited by edwardzracing; 10-29-2011 at 04:27 PM.
