AFR 2101 BBC 325/117CC .725/.850 COMPLETE WITH HYDRAULIC OR SOLID ROLLER SPRINGS

Regular price $ 2,533.25

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

 Recommended for more aggressive street or street/strip big block chevy applications with displacements up to 540 cubic inches, operationg at or below 6800 RPM. The 325cc magnum cylinder head intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with partial or full CNC machining with a bowl blend. Capable of flowing 390 CFM at 0.700" of lift.

325cc Aluminum BBC Cylinder Heads
Part # Description Combustion Chamber
2101 CNC Bowl Blend & Partial CNC Chamber 117cc
2101-1 CNC Bowl Blend & Fully CNC Chamber 121cc

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325cc BBC Partial CNC Chamber
  .200 .300 .400 .500 .600 .700
Int 150 220 286 337 372 385
Exh 131 176 214 248 270 280
325cc BBC Full CNC Chamber
  .200 .300 .400 .500 .600 .700
Int 170 242 304 342 372 390
Exh 145 195 244 266 274 280

Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.310", 3/4" radius plate exhaust, 2 1/8" curved pipe

Included Components
Competition 5-angle valve job
50% CNC Ported Combustion Chambers
20% CNC Ported Exhaust Ports
30% CNC Ported Intake Ports
11/32" Intake Valve, 2.300" x5.500" O.A.L
7626
11/32" Tulip Exhaust Valve, 1.880" x 5.450" O.A.L
7631
PAC Racing Spring #1224 1.625 O.D. Solid Roller, 275lbs on seat, .850 Maximum Lift, Max RPM 7400-7600
8031
Manley 10° Steel Retainers 1.500" O.D x 1.168" I.D x .844" I.D
8518
10° 11/32" Valve Locks with lashcap recess
9005
ARP 7/16" Rocker Exhaust Studs
6406
ARP 7/16" Rocker Intake Studs
6407
Adjustable 3/8" Guide Plates
6109
11/32" Viton Valve Seals
AFR #6613
Hardened Spring Cup 1.740" O.D / 1.650" I.D
8046
Intake Valve Seats 2.450" O.D x 2.000" I.D x .375" Deep
9065
Exhaust Valve Seats 2.000" O.D x 1.580" I.D x .375" Deep
9064
11/32" Intake Bronze Valve Guides .502" O.D x 2.10" O.A.L
AFR #9041
11/32" Exhaust Bronze Valve Guides .502" O.D x 2.25" O.A.L
AFR #9042
Specifications & Features:
Material
A356 Aluminum
Intake Port Volume
325cc
Intake Port Dimension
2.360"H x 1.685"W x 3/8 Radius
Intake Port Location
Stock
Exhaust Port Volume
132cc
Exhaust Port Dimension
1.720"H x 1.920" W
Exhaust Port Location
.375" Raised
Combustion Chamber Size(As Cast)
117cc
Combustion Chamber Size(Full CNC)
121cc
Valve Cover Bolt Pattern
Perimeter Bolt
Valve Angle
24°/4° Int, 15°/4° Exh
Valve Spring Pocket Diameter
1.725" O.D
Max Valve Spring Pocket Machining
1.750" O.D
Deck Thickness
.750"
Minimum Bore Diameter
4.250"
Flat Mill
.006" per cc/ Maximum 108cc As Cast or 114cc CNC Chamber
Angle Mill
.009" per cc/Maximum 104cc As Cast or CNC Chamber
Note:Angle mills might require a .120" Thick intake gasket.
Minimum Cross Sectional Area
3.111 sq. in.
Spark Plug Dimensions
14mm x .750" w/Gasket Seat

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CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

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Warning: May cause cancer and reproductive harm.