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AFR 195cc SBC LT4 Aluminum Cylinder Heads
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The Ultimate Bolt-on Emissions Legal Street Weapon
The AFR Emissions Legal (CARB EO #D-250-2 for engines up to 1994), 195cc intake port LT4
small block Chevy cylinder heads are available in an LT4 angle plug version.
These heads feature a 56cc to 74cc combustion chamber with a 64cc exhaust port
and a 3/4” thick head deck (ideal for nitrous or blower applications).
Standard valves are 2.020 intake and 1.600 exhaust with AFR’s hardened
ductile iron interlocking valve seats. The exceptional flow characteristics,
ideal operating range of 2500 rpm to 6500 rpm (higher rpm ranges possible depending on combination of parts),
23º valve angle, and standard valve spacing make this the perfect street head for 350
cid to 383 cid engines. Designed specifically for 1996 Corvettes or LT4 manifold users.
No special parts are required.
Note:
Hydraulic roller cams typically experience valve float at 5800-6000 rpm because of their fast ramp rates.
AFR suggest you upgrade your springs to AFR part #8032, 1.530 O.D. with higher spring pressures and use our
Patented Hydra Rev Kit to reduce chances of valve float associated with rpm 6000 or higher.
FREE Shipping on ALL AFR Heads!!!
All AFR Chevy LT1/LT4 Heads not "In Stock" are made to order (12 WEEK BUILD TIME) and are ordered after payment is received. Contact us to see if the heads you want are in stock.
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| Kit Description |
Part Number |
Price |
Buy |
| 195cc LT4 CNC Ported w/parts L98 Angle Plug 56cc-74cc |
1031 |
$1775 |
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| 195cc LT4 Competition Package w/parts L98 Angle Plug 56cc-74cc |
1039 |
$2450 |
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Intake Ports:
Flow Charts:
Combustion Chamber:
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Exhaust Ports:
Basic Package Components:
100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
70% to 100% CNC Ported Intake Ports
3-angle Valve Job
Intake Valve, 2.020" standard length, AFR #7204 Comp PKG #7002
Exhaust Valve, 1.600" standard length, AFR #7219 Comp PKG #7057
1.450" OD Hydraulic Dual Valve Spring, 120 lbs. on seat, .550" maximum lift, AFR #8020 Comp PKG #8015
10º 4140 Chrome Moly Retainers, AFR #8506
10º Valve Locks, AFR #9006
3/8" Rocker Studs, AFR #6410
Guide Plates, AFR #6105
Valve Seals, AFR #6611
Hardened Shims, AFR #8043
Intake Valve Seats, AFR #9060
Exhaust Valve Seats, AFR #9070
Bronze Valve Guides, AFR #9050
All Accessory Holes are Predrilled & Tapped!
Specifications, Features, and Supporting Components:
Head Torque 65-70 Ft. Lbs.
Rocker Stud Torque 55-60 Ft. Lbs.
Intake Port Gasket, 1.250”x2.100” w/ 3/8" radius, AFR #6824
Important: Do not port match your intake manifold to this Fel-Pro gasket, as they do not exactly fit AFR heads.
Exhaust Port Gasket Fel Pro #1404, AFR #6834
Head Gasket 350 cid Fel Pro #1074, AFR #6803
Head Bolts & Studs Standard ARP, AFR #6310 & #6305
Head Bolt Washers Manley, AFR #6320
Stud Girdle AFR #6201
Suggested Manifold GM LT4
Spark Plug Starting Range AC FR3LS
Combustion Chambers 56cc to 74cc
Spring Pocket can be cut to 1.625, no deeper.
Valve Spacing Standard
Rocker Arms Standard
Valve Angle 23º
Angle Mill .008” per cc
Flat Mill .006” per cc
Pushrods 5/16” Hardened, AFR #6606
Note: Milling head deck will affect flow numbers
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View the rest of our catalog:
Full Catalog
Please contact us with any questions:
2587 Dos Lomas
Fallbrook, Ca 92028
(760) 586-5617
Email: sales@TREperformance.com
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