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12226
Slp Performance Cylinder Head & Cam Package, 1999-2005 346 Cid Ls1 525 Hp
12226
SLP Cylinder Head & Cam Package, 1999-2005 346 CID LS1 525 HP
Your Price:
$2,869.45
Cylinder Head & Cam Package, 1999-05 346 CID LS1 525 HP
Mach Performance Parts Does not sell products.
Save Money on this SLP AFR Cylinder Head and Cam Package
We teamed up with AFR to bring you these street/strip heads and matched them with one of our high performance LS1/LS2/LS6 cams for an even better deal. They flow enough air (up to 320 CFM intake) to work with all LS1, LS2 or LS6 small blocks as large as 427 cubic inches, down to a well-built 346. The secret to the high flow numbers is CNC porting and a newly-designed combustion chamber with a double quench pad area.
Another reason we picked these heads is the rugged design that can live on top of a high-power engine. Dont worry if you use nitrous or a blower because AFRs 3/4 inch-thick deck is standard, along with reinforced rocker stud bosses, thick-wall runners and interlocking ductile iron valve seats. To maximize performance, we include double springs (.600 inch max lift) and titanium retainers.
To really get the full potential of these heads we matched them to our most aggressive cam for engines in the 346 CID/5.7L range.
Camshaft Specs:
Valve Lift
Duration@.050
in:
.590"
236º
ex:
.590"
236º
Centerline - 112º
Lobe Separation - 112º
Best of all, youll save $25 over the cost of purchasing the parts separately!
NOTES: These heads are ready to bolt on, but we recommend that final assembly of any engine be performed by an experienced, professional mechanic.
AFR SLP Cylinder Heads feature:
Intake flow up to 304 CFM at .500 lift, 320 CFM at .600 lift @ 28 of H2O.
Exhaust flow up to 250 CFM at .600 lift @ 28 of H2O (using 1-7/8 inch exhaust pipe).
225cc heads with 62cc combustion chamber.
CNC ported intake and exhaust ports, and combustion chambers.
2.080 intake, 1.600 exhaust standard length valves.
3-angle radiused valve job.
2.080 intake, 1.600 exhaust valves.
7° titanium retainers and valve locks.
1.290 inch double springs, 135 lbs seat, .600 inch maximum lift.
Emissions-legal CARB EO #D250-4.
Fully assembled, ready to bolt-on.
Matched .590/236º int. 590/236º exh. camshaft.
Rocker-Arms, LS1/LS6/LS2 (1.85 Ratio)
SLP is proud to re-release our 1.85-ratio rocker arm package for GM "Gen III" engines which includes LS1, LS6, LS2 as well as 4.8, 5.3 and 6.0 liter truck engines. Designed as a true bolt-on replacement, these new rockers require NO valve cover or cylinder head modifications (please reference our instructions for proper installation).
SLP exclusive design is based off of the stock rocker providing an OEM quality steel construction and a roller bearing trunion which results in a 10% increase in valve lift over the stock 1.7 ratio rocker arms and gains of up to 12 horsepower over stock. This package includes 16 rocker arms, detailed instructions and all required installation hardware.
This package includes:
1.85 Ratio Rocker Arms 16 qty (50185)
New bolts 16 qty
Note 1
: When using an aftermarket camshaft, please contact SLP for proper compatibility.
Note 2
: LS1, LS6 and LS2 engines may require SLP springs, retainers and keepers reference chart below and part # 51185 rocker arm package when purchasing.
SLP ROCKER-ARM COMPATIBILITY CHART (with stock camshafts)
YEAR
APPLICATION
ENGINE
Are SLP springs & retainers required?
Intake Valve Lift with SLP 1.85 rocker
Exhaust Valve Lift with SLP 1.85 rocker
2005
C6 Corvette
LS2
Yes
0.600
0.596
2002-2004
Z06 Corvette
LS6
Yes
0.600
0.596
2001
Z06 Corvette
LS6
Yes
0.569
0.568
2001-2004
Corvette
LS1
No
0.505
0.521
2000
Corvette
LS1
Yes
0.544
0.544
1997-1999
Corvette
LS1
No
0.514
0.521
2001-2002
F-Body
LS1
No
0.505
0.521
1998-2000
F-Body
LS1
Yes
0.544
0.544
2005
GTO
LS2
Yes
0.600
0.596
2004
GTO
LS1
No
0.505
0.521
2006
CTS V
LS2
Yes
0.600
0.596
2004-2005
CTS V
LS6
Yes
0.600
0.596
2005
SSR Truck
LS2
Yes
0.566
0.564
2001-2005
CK Truck
LQ4, LQ9
No
0.505
0.521
1999-2005
CK Truck
LR4, LM7
No
0.497
0.507
1999-2000
CK Truck
LQ4
No
0.497
0.507
2003-2004
ST Truck
LM4
No
0.497
0.507
2002-2005
CK Truck
L59
No
0.497
0.507
RECOMMENDED PARTS
PARTS THAT CAN ENHANCE THE APPLICATION OF PART# 50185
PART NUM
DESCRIPTION
PRICE
53002
Valve Springs, LS1/LS6/LS2 High-Performance (set of 16)
$219.95
53103
Retainer, Titanium Valve-Spring LS1/LS6/LS2 (set of 16)
$169.95
66345
Keepers, Valve LS1/LS6/LS2 (Set of 32)
$22.95
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