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August Sale: $1,633.95
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Part number: 19474030
Product Details
Dart 19474030 Cylinder Heads
Products specifications
Comb Chamber 121cc
Intake Runners 335cc
Valves 2.300 Int / 1.880 Exh
Pro 1 CNC BBC 335 Cylinder Head
Bare Casting

Every intake port, every exhaust port, every valve bowl and every combustion chamber is 100% CNC machined on special, dedicated Pro 1 castings. Our 5-axis computer controlled machining centers produce compound curves and complex shapes that no human could duplicate with a hand grinder.

Features:

  • 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.
  • CNC machining ensures that every chamber has the same volume so that every cylinder maintains equal compression.
  • Raised spark plug location improves flame travel for a quicker, more complete burn, producing more power.
  • Multi-angle intake seats and radiused exhaust seats greatly improve air flow.
  • 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 ensure long term reliability.
  • All cylinder heads sold individually.
Reviews
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S
Super easy to browse web site and find the product I wanted.
The price was unmatched.
Shipping was fast and cheap.
Super shopping experience.
A
Great prices, helpful customer service. Ordered 2 by mistake. And they got it cleared up real fast. Saved over $80 off retail. Will be ordering from the, again!!!!!
J
Rather amazing and uneventful service in this day and age.  Ordered a Thule bike rack for my Nissan Murano.  It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box).  I'd buy anything from these people without any reservation.  AND, your order is insured - completely superfluous.  Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.
9
Fast Easy and they have the best prices
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