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  • Dart Pro 1 Big Block Chevy 345 Cylinder Head - 1.550 dual springs (DAR-19300132)

Dart Pro 1 Big Block Chevy 345 Cylinder Head - 1.550 dual springs

RRP: $1,627.30 (You save $81.36)
38.00 LBS
Free Shipping

Product Description

Pro 1 big block Chevy, 345cc intake runners, 121cc combustion chambers, 2.300 intake and 1.880 exhaust valves, 1.550 dual springs.

Inspired by our championship winning Pro Stock designs, the Pro1's race proven features include rolled valve angles, improved spark plug location, extra long intake valves, raised exhaust ports and fast burn chambers - Yet the Pro1 can be used with off the shelf pistons, valve train components and intake manifolds.

- Premium alloy: Dart aluminum heads are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.

- Bolt on compatibility: 2 degree rolled valve angle and standard spacing. Accommodates all stock accessories.

- Heart shaped 121cc chambers improve combustion efficiency.

- Raised spark plug location improves flame travel for a quicker, more complete burn, producing more power.

- Multi-angle intake seats and radiused exhaust seats dramatically increase airflow.

- Hardened exhaust seats are compatible with unleaded gasoline.

- Exhaust ports raised .300" to improve flow (requires 1" longer head bolts next to exhaust ports).

- Spark plug holes are machined for gasketed 3/4" reach plugs.

- Manganese bronze valve guides extend cylinder head life and reduce stem wear.

- All cylinder heads are sold individually.



All products are free of charge via UPS Ground in the continental US only. Home or business addresses only. No “P.O. Box” deliveries.

Rush orders can be shipped for an additional fee.

For scheduling/assistance call: (714) 899-2311 

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