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RaceSeries 24 340 370cc OvalPort

Race Series 24° 340/370cc Oval Port

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Product Description

Maximum competition, performance marine and high torque, 8,000+ RPM, 500+ cubic inches.

Dart 370cc oval port Aluminum cylinder heads have high velocity 370cc intake runners that produce incredible midrange torque and throttle response. Oval port heads really “wake up” a big block in marine applications, or in a heavy car with an automatic transmission. They also work great in a light car with a tight torque converter.

Dart big block heads deliver superior performance without the hassles of welding and modifying stock castings. We applied proven Pro Stock technology to produce big block heads that out perform the competition, yet Dart heads can be used with most off the shelf pistons, manifolds, headers, and valve train components.

Heads are sold individually.

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Material: RMR Cast Aluminum Alloy

Valve Angle: 24° 

Intake Port Volume: 340/370cc

Intake Valve: 2.250″/2.300”

Exhaust Valve: 1.880”

Chamber Volume: 125cc

Intake Port Shape: Oval

Exhaust Port Location: .300” raised

Race Series 24° 340cc – Aluminum (Oval Port Heads)

16776010 – Bare Head Full Port 340cc 2.250/1.880 4.500

16776116 – Assembly Full Port 340cc 2.250/1.880 1.625 4.500

16777010 – Bare Head Full Port 340cc 2.250/1.880 4.600

16777116 – Assembly Full Port 340cc 2.250/1.880 1.625 4.600


Race Series 24° 370cc – Aluminum (Oval Port Heads)

16774030 – Bare Head Full Port 370cc 2.300/1.880 4.500

16774136 – Assembly Full Port 370cc 2.300/1.880 1.625 4.500

16775030 – Bare Head Full Port 370cc 2.300/1.880 4.600

16775136 – Assembly Full Port 370cc 2.300/1.880 1.625 4.600

RACE SERIES 340 Tech Sheet – H46

RACE SERIES 370 Tech Sheet – H48

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