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AFR 1845/1840 LS3 260/69CC .650 LIFT ASSEMBLED YOUR CHOICE OF 4 OR 6 BOLT HEADS
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AFR 1845/1840 LS3 260/69CC .650 LIFT ASSEMBLED YOUR CHOICE OF 4 OR 6 BOLT HEADS
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AFR 1845/1840 LS3 260/69CC .650 LIFT ASSEMBLED YOUR CHOICE OF 4 OR 6 BOLT HEADSCALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. AFRs 260cc LS3 Mongoose heads feature 100% CNC ported intake, exhaust and chambers using our advanced engineering and flow techniques to produce the ultimate Rectangle Port head available today. Featuring A356 aluminum castings, titanium retainers and the highest quality components, throughout. Theyre designed for 4. 000 or larger bore applications up to 454 CI, operating up to 7000 RPM. Emmisons legal
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Why choose thelockerguy wholesale?
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.
AFR’s 260cc LS3 “Mongoose” heads feature 100% CNC ported intake, exhaust and chambers using our advanced engineering and flow techniques to produce the ultimate Rectangle Port head available today. Featuring A356 aluminum castings, titanium retainers and the highest quality components, throughout. They’re designed for 4.000 or larger bore applications up to 454 CI, operating up to 7000 RPM. Emmisons legal for 2008 to 2015 vehicles under CARB #D-250-5. To ensure trouble free operation please view the footnotes on pg. 54 of AFR's website.
| 260cc Aluminum LS1 Cylinder Heads | ||
|---|---|---|
| Part # | Description | Combustion Chamber |
| 1840 | CNC Ported w/parts 6 Bolts | 69cc |
| 1845 | CNC Ported w/parts 4 Bolts | 69cc |
Click part # to add product to your cart
| 260cc Street Head Flow Chart | |||||||
| .200 | .300 | .400 | .500 | .600 | .650 | .700 | |
| Int | 159 | 234 | 293 | 336 | 366 | 377 | 384 |
| Exh | 112 | 158 | 207 | 235 | 248 | 251 | 255 |
Test conducted at 28" of water (pressure) on Superflow 600
Bore Size: 4.155", 3/4" radius plate exhaust, 1 3/4" curved pipe
| Basic Package Components | |
| 100% CNC Ported Combustion Chambers | |
| 100% CNC Ported Exhaust Ports | |
| 100% CNC Ported Intake Ports | |
| Competition 5-angle Valve Job | |
| 8mm Bead Lock Intake Valve, 2.165" x 5.195" Overall Valve Length |
7214
|
| 8mm Bead Lock Exhaust Valve, 1.600" x 5.200" Overall Valve Length |
7212
|
| PAC Racing Spring 1.270" OD Hydraulic Roller Dual Valve Spring, 155 lbs. on seat, Max RPM 7000-7200 |
8019
|
| 7° Titanium Retainers 1.245" O.D x .885" I.D x .655" I.D |
8512
|
| 7° Bead Lock Valve Keepers |
9007
|
| Viton Valve Seals .600" O.D x .495" I.D |
6612
|
| Hardened Valve Spring O.D Locator 1.380" O.D x .570" I.D |
8042
|
| Ductile Iron Intake Valve Seats 2.200" O.D x 1.750" I.D x .375" Deep |
9060
|
| Ductile Iron Exhaust Valve Seats 1.650" O.D x 1.350" I.D x .375" Deep |
9069
|
| 8 mm Bronze Valve Guides .502" O.D x 2.550" O.A.L |
9053
|
| Rocker Rail Stand |
AFR #6040
|
| Recommended Components: | |
| Intake Port Gasket |
Factory GM or Aftermarket
|
| Exhaust Port Gasket |
GM #12558573
|
| Head Gasket |
Cometic 4.160 Bore Size
|
| Head Bolts (04+), ARP 134-3610 |
6334
|
| Head Studs (04+), ARP 234-4317 |
6335
|
| Head Bolt Washers, Manley |
6320
|
| Suggested Manifold |
FAST 92mm or 102mm
|
| Spark Plug Starting Range |
NGK TR55
|
| Specifications & Features: | |
| Material |
A356 Aluminum
|
| Intake Port Volume |
260cc
|
| Intake Port Dimension |
2.610"H x 1.300"W x 7/16° Radius
|
| Intake Port Location |
Stock
|
| Exhaust Port Volume |
95cc
|
| Exhaust Port Dimension |
1.540" H x 1.760" W
|
| Exhaust Port Location |
Stock
|
| Combustion Chamber Size |
69cc
|
| Valve Cover Bolt Pattern |
Center Bolt
|
| Valve Angle |
12°
|
| Valve Spring Pocket Diameter |
1.490" O.D
|
| Max Valve Spring Pocket Machining |
1.510" O.D
|
| Deck Thickness |
.750"
|
| Minimum Bore Diameter |
4.000"
|
| Flat Mill - 65cc chamber |
.006" per cc 62cc Maximum
|
| Minimum Cross Sectional Area |
2.875 sq. in.
|
| Spark Plug Dimensions |
14mm x .750" w/Gasket Seat
|
| Carb EO# |
D-250-5
|
SHIPS IN THE LOWER 48 STATES FREE!
CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.
CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER
Warning: May cause cancer and reproductive harm.
AFR 1845/1840 LS3 260/69CC .650 LIFT ASSEMBLED YOUR CHOICE OF 4 OR 6 BOLT HEADS
Item no
:
76088167527
US$ 3150.53
Pay in 4 interest-free payments of $787.63 Learn more
Min. order:
1piece
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
US$40
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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