*LSX bead locks and aftermarket bead locks are not interchangeable. GM made their bead lock radius and depth different. AFR locks are the same as GM LSX.
| Included Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
| Competition 5-angle Valve Job | |
| 8mm LSx 2.000 OD Int Valve - 4.900" OAL, For Small bore 5.3L engines | |
| 8mm LSx 1.570 Exh Valve - 4.915" OAL, For Small bore 5.3L engines | |
| Pacaloy Hydraulic Roller Spring 1.290 O.D., Premium Grade Chrome Silicon | |
| Steel 7 degree Retainer 1.245 OD x .880 ID x .655 ID | |
| 7° Bead Lock Valve Keepers | |
| Viton Valve Seals .600" O.D x .495" I.D | |
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D | |
| 214cc Competition Flow Chart | ||||||
| .200 | .300 | .400 | .500 | .550 | .600 | |
| Int | 156 | 206 | 237 | 271 | 283 | 293 |
| Exh | 119 | 160 | 192 | 214 | 219 | 225 |
Test conducted at 28" of water (pressure) on Superflow 1020
Bore Size: 3.780", intake 3/4" radius plate exhaust, 1 3/4" curved pipe
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
214cc
|
| Intake Port Dimension |
3.275"H x 1.120"W x5/16 top 3/8 bottom
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
90.2cc
|
| Exhaust Port Dimension |
1.415" H x 1.710" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
65cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
15°
|
| Valve Spring Pocket Diameter |
1.510" O.D
|
| Max Valve Spring Pocket Machining |
1.525" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
3.780"
|
| Flat Mill |
.006" per cc 58cc Maximum
|
|
|
|
| Spark Plug Dimensions |
14mm x .750" w/Tapered Seat
|
| Recommended Components: | |
| Intake Port Gasket |
GM or Aftermarket
|
| Exhaust Port Gasket |
GM#12558573
|
| Head Gasket |
Cometic 3.930 Bore Size
|
| Head Bolts (97-03) |
ARP 134-3609 or AFR #6330
|
| Head Studs (97-03) |
ARP 234-4110 or AFR #6331
|
| Head Bolts (04+) |
ARP 134-3610 or AFR #6334
|
| Head Studs (04+) |
ARP 234-4317 or AFR #6335
|
|
|
|
| Suggested Manifold |
FAST 92mm, or 102mm
|
| Spark Plug Starting Range |
NGK TR55
|
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