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AFR 345cc Magnum BBC Cylinder Heads
Cylinder Heads
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Airflow Research (AFR)

AFR 345cc Magnum BBC Cylinder Heads

4.0 out of 5 stars 4 Customer Reviews

If huge horsepower is what you're searching for, then AFR 345cc Magnum BBC cylinder heads will certainly deliver. They're recommended for radical street/strip, Pro

If huge horsepower is what you're searching for, then AFR 345cc Magnum BBC cylinder heads will certainly deliver. They're recommended for radical street/strip, Pro Street, or racing applications on engines up to 572 cu. in. operating below 7,000 rpm—and are capable of flowing 400 cfm at 0.700 in. of lift. These A356 aluminum heads are designed for maximum horsepower and rpm capability, with an average primary operating range of 3,500-8,000 rpm; they also provide impressive torque figures. AFR recommends the use of .120 in. wall pushrods and full-roller rocker arms for strength.

It's vital that you check clearance

If huge horsepower is what you're searching for, then AFR 345cc Magnum BBC cylinder heads will certainly deliver. They're recommended for radical street/strip, Pro Street, or racing applications on engines up to 572 cu. in. operating below 7,000 rpm—and are capable of flowing 400 cfm at 0.700 in. of lift. These A356 aluminum heads are designed for maximum horsepower and rpm capability, with an average primary operating range of 3,500-8,000 rpm; they also provide impressive torque figures. AFR recommends the use of .120 in. wall pushrods and full-roller rocker arms for strength.

It's vital that you check clearance of all moving parts due to the vast array of rocker arms, lifters, cams, springs, etc. Don't forget to check pushrod-to-head clearance, as well as any potential interference from your rocker arms and spring assemblies prior to final engine assembly. AFR 345cc Magnum BBC cylinder heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves.

All the results found for this search are Not In Stock.

Results 1 - 4 of 4

AFR 345cc Magnum BBC Cylinder Heads 2110-1

AFR 345cc Magnum BBC Cylinder Heads 2110-1

AFR 345cc Magnum BBC Cylinder Heads 2110-1

Cylinder Heads, CNC Chambers, Aluminum, Assembled, 121cc Chamber, 345cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2110-1

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Precision Cast BBC Cylinder Head SUM-162BBCREC335

Summit Racing™ Precision Cast BBC Cylinder Head SUM-162BBCREC335

Not Yet Reviewed

Estimated Ship Date: Today

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AFR 345cc Magnum BBC Cylinder Heads 3450

AFR 345cc Magnum BBC Cylinder Heads 3450

AFR 345cc Magnum BBC Cylinder Heads 3450

Cylinder Heads, Aluminum, Bare, As Cast, 345cc Intake Runner, Chevy, Big Block, Pair

Part Number: AFR-3450

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

AFR 345cc Magnum BBC Cylinder Heads 3450-1

AFR 345cc Magnum BBC Cylinder Heads 3450-1

AFR 345cc Magnum BBC Cylinder Heads 3450-1

Cylinder Heads, Aluminum, 345cc Intake, Partially CNC Ported, with Valve Job, 121cc CNC Chambers, Bare, BBC, Pair

Part Number: AFR-3450-1

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

AFR 345cc Magnum BBC Cylinder Heads 2110

AFR 345cc Magnum BBC Cylinder Heads 2110

AFR 345cc Magnum BBC Cylinder Heads 2110

Cylinder Heads, CNC Blended Bowls, Aluminum, Assembled, 117cc Chamber, 345cc Intake, Chevy, Big Block, Pair

Part Number: AFR-2110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 20, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Precision Cast BBC Cylinder Head SUM-162BBCREC335

Summit Racing™ Precision Cast BBC Cylinder Head SUM-162BBCREC335

Not Yet Reviewed

Estimated Ship Date: Today

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