THMotorsports Logo

Your cart

Your Cart

Dart 31283665 Short Blocks

Manufacturer

Dart

<p>Dart is committed to producing the best engine components available. All development, machining and assembly are done at Dart&rsquo;s own facilities in order to maintain the highest standards of quality. State of the art CNC machining centers, a computer controlled dynamometer and the proprietary &ldquo;Speed Flow&rdquo; technology / wet flow bench are among the assets which contribute to &ldquo;the Dart advantage&rdquo;.</p>

Picture for manufacturer Dart 10711143p Cylinder Head

Part Number

31283665
9 reviews
04/26/2034 4:51 AM
Sale Price

$4,587.81

Out of Stock

Notify me when available
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

Dart 31283665 Short Blocks

Tall Deck Iron BBC Block

Standard 4.840 or 4.900 spread bore spacing provide large bore capacity. The camshaft is raised .400 above the stock location to increase clearance for the connecting rods and crankshaft counter weights, and the main oil gallery is located alongside the camshaft tunnel to eliminate interference with the crank assembly.

Advanced engineering makes Dart aluminum big blocks the choice for serious competition.

Features:

  • Premium alloy: Dart aluminum blocks are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.
  • Ductile iron sleeves with extra thick cylinder walls promote excellent ring seal.
  • Reinforcing ribs strengthen the lifter valley bellhousing flange.
  • Inboard valley head stud bosses improve gasket sealing.
  • Priority main oiling system delivers oil directly to the crankshaft bearings to enhance reliability at high engine speeds.
  • Standard BBC cam journals, up to 60mm with raised cam options available.
  • Standard .842 BBC lifter bores, other options also available.
  • With or without distributor provision.
  • Steel 4 bolt main caps with splayed outer bolts for extra strength. Light-weight aluminum caps also available.
  • Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in any chassis.
  • Dual oil pan bolt patterns fit standard and notched oil pans.
  • Average weight 140lbs.
  • Dart blocks are available fully finish prepped.

Products specifications

Cam Bearings Included

Yes

Cyl Bore

4.6in

Cylinder Bore as Shipped

4.490 in.

Deck

10.6in

Deck Height (in)

10.600 in.

Engine Block Material

Cast iron

Engine Block Style

Aftermarket

Engine Block Weight (lbs)

313 lbs.

Finished Cylinder Bores

No

Freeze Plugs Included

Yes

Main Bearings Included

No

Main Bolt Style

4-bolt

Main Cap Fasteners Included

Yes

Main Cap Material

Steel billet

Main Caps Included

Yes

Main Journal Type

OEM

Maximum Cylinder Bore Diameter

4.625 in.

Quantity

Sold individually.

Raised Cam Location

Yes

Rear Main Seal Style

2-piece

Tool

Stroker Combinations

I had a great experience shopping at autoplicity

Great price found for my product. excellent customer service and my item was in stock.

so far so good!

Ordering was very easy and product was delivered within a week. I ordered a battery and it was received in good condition and works. I would recommend autoplicity to others.

This is our second order from Autoplicity. The first one didn't go so well due to a mix up with the Sparco seat pricing. Though I was starting to question our decision to order from them after several emails and phone calls and online chats, they came through in the end. These guys earned our second order by honoring the price they had listed and then calling to follow up when our race seat was shipped. Since this group was able turn our bad experience into a positive one we made our second order and, so far, it looks like they are again getting us what we want at the best price we can find. We are happy to recommend Autoplicty and plan on using them for future orders. There is one specific thing we would recommend, change the quality and volume of the hold music on the 800 #. It sounded like we were calling a 1970's van with a blown Jensen stereo turned all the way up,...

Shipped very quickly and had the best price I could find!

Great prices on most things. Ordered on a sunday and they processed and shipped the order the next day.

first order fast shipping and great fit

The whole process was some and quick. They also had the lowest prices available. Will be using them more often for sure!!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy