Top
Details
Reviews
Q&A
Videos & Articles
Add to Cart
$1,668.99
Dart 31161211 Special High Performance Chevy Block, 4.125 Inch Bore
Dart 31161211 Special High Performance Chevy Block, 4.125 Inch Bore
Chevy Small Block V8
In Stock
Select Vehicle
Dart 31161211 Special High Performance Chevy Block, 4.125 Inch Bore
Part # 30431612
$1,668.99
each
Add to Cart
Add to Buildlist
Compare
Details
Reviews
Q&A
Videos & Articles
Details
Info
Dart's Special High Performance (SHP) small-block meets the need for an affordable, precision-machined cast-iron block with superior features. Designed for high-performance and heavy-duty applications producing up to 600 horsepower, the SHP block is the ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders, and high-performance marine enthusiasts. The SHP block as all the features needed without spending the big bucks and having to wait on your machine shop.
- All new, precision machined
- Cast from high nickel iron
- Priority main oiling system
- Siamese 4.125" bores
- At 4.165" bore, .230" wall thickness
- Clearance for 3.75" stroke w/ steel rods
- Decks parallel within .002"
- Made in USA
- Blind head bolt holes
- 350 main journals
- Splayed 4-bolt center main caps
- Two piece rear main seal
- Accepts OEM roller rockers and cams
- Uses 1981-85 oil pans & dipsticks
- Accepts standard starters and bellhousings
Notes
- DOES NOT come with cam bearings. Order (5) qty. 304-3221 bearings.
- Cylinders will require final bore machining before assembly.
Specs
Dart SHP Block Spec Sheet (PDF)
Some parts are not legal for use in California or other states with similar laws/regulations
More Like This
-
Dart 31161111 Special High Performance Chevy Block, 4.00 Inch Bore$1,668.99
-
Dart 31131111 Little M Chevy Block, 4.00 Inch Bore$2,898.99
-
Dart 31131211 Little M Chevy Block, 4.125 Inch Bore$2,898.99
-
BluePrint BPSB4000100S SB Chevy Cast Iron Engine Block, 1 piece Seal$1,680.99
-
BluePrint BPSB4125200S SB Chevy Cast Iron Engine Block, 2 piece Seal$1,615.99
-
BluePrint BPSB4000100W SB Chevy Cast Iron Engine Block, 1 piece Seal$1,680.99
-
BluePrint BPSB4000200S SB Chevy Cast Iron Engine Block, 2 piece Seal$1,615.99
-
BluePrint BPSB4000200W SB Chevy Cast Iron Engine Block, 2 piece Seal$1,680.99
-
BluePrint BPSB4125100S SB Chevy Cast Iron Engine Block, 1 piece Seal$1,680.99
-
BluePrint BPS4250100S BB Chevy Cast Iron Engine Block, 1 piece Seal$2,099.99
Reviews
Q & A
Videos & Articles
-
-
Visit the Toolbox
The Toolbox is Speedway Motors' hub for professionally written articles.
-
Speedway Motors employee Pat joins us once again. This time Pat is talking to the Model A and Model T owners, specifically in regards to Moto-Meters and accessories.
