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Dart Race Series Aluminum Small Block Chevy Blocks

$9,822.84 SALE: $9,528.15

Dart

Model #31712122

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With displacements up to 455 cubic inches, a Dart aluminum block isIdeal for sprint cars, modifieds, late model stock cars, dragsters and unlimited competition classes

Features:

- Standard 9.025", tall deck 9.325" and 9.500" versions allow for greater versatility

- Raised camshaft .391" (4.912" camshaft to crankshaft centerlines) provides more clearance for stroker cranks and eliminates need for fragile small base circle cams. Option for .434 raised cam also available

- Relocated oil pan rails are spread .400" per side (.800" wider than stock) to increase crank/rod clearance and reduce windage losses

- Siamesed cylinders: Standard 4.000" or 4.125" cylinder can be safely bored to 4.185". Ductile iron sleeves and extra thick walls prevent cracking and produce excellent ring seal

- Oil pan bolt holes are relocated in line with main caps to eliminate interference with rotating assembly

- Main bearing bores are available for 350 (2.45") and 400 (2.65") bearings allow engine builders to maximize crankshaft strength and minimize friction

- 4 bolt billet steel main caps have splayed outer bolts minimize bearing bore distortion

- Big block camshaft bearings allow use of cams with larger base circle diameter to improve strength and resist twisting with cam driven pumps

- Dual starter mounts allow starter to be mounted on either side of block for chassis and oil pan clearance

- Front and rear external oil inlets, crossover and restrictor provisions to simplify plumbing with external pump

- Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures

- Coated cam bearings, freeze plugs and dowels are included

Block Prep Options

Dart blocks are optionally available fully finish prepped. If you choose to order your block this way you can specify a final lifter spec and a final hone spec. Your block will be finish machined to your specs, final prepped and washed, pipe plugs and freeze plugs will be installed, then it will be bagged and boxed. Your block will arrive finished and ready to use!

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

https://www.P65Warnings.ca.gov

Who is Dart?

Dart machinery started in a humble environment. Dart was founded in Oak Park, Michigan, in 1981 in a two-car garage. Dart has developed into an established pioneer in re-market cylinder heads, intake control systems and motor blocks throughout the years after the company started a business using a desk and telephone.

Dart's Commitment to High Quality?

Dart is committed to assembling the best engine components available. All development, machining, and assembly are accomplished at Dart facilities to keep the highest quality measures. CNC, a computerized dynamometer, and the proprietary Maskin are updated to the state of the art technology advancement in the Dart engine production program. Engine program and daily interaction with leading engine builders and winning racers put Dart on the leading edge of technology

The original company products were aluminum Hemi cylinder heads that controlled the top fuel and funny car levels. These purpose-built heads granted the power that ultimately broke drag racing’s 300 mph barrier and designed the first four-second Funny Car elapsed time. In recent years, Dart spread-port Big Chief heads have set the measure in classes ranging from Pro Street to Pro Mod. The launch of the inexpensive Iron Eagle and the PRO 1 cylinder heads for large and small Chevy V8s, backed by aluminum- and cast-iron engine parts, is also continuing this tradition of innovation. Dart considering expanded its product line to include small-block Ford and Honda parts.

Dart at Vivid Racing

Dart was started with a desk, a telephone, and a dream. Dart today is the acknowledged pioneer in race-winning components development. Contact our sales team at (480) 966-3040.

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