Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
RaceTec AutoTec Forged Pistons
Pistons, Forged, 4.280 in. Bore, 4.250 in. Stroke, Dome Top, 6.385 in. Rod Length, 0.990 in. Pin Diameter, BBC, Chevy, Set of 8
See More Specifications
|
Check the Fit
Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
1000675
Part Type:
Product Line:
Summit Racing Part Number:
PIS-1000675
Piston Rings Included:
No
Bore (in.):
4.280 in.
Bore (mm):
108.712mm
Stroke:
4.250 in.
Engine Stroke Type:
Stroked
Actual Engine Displacement:
8.0L/489
Rod Length:
6.385 in.
Piston Style:
Dome, with no valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.270 in.
Piston Head Volume (cc):
-41.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.990 in.
Piston Ring Thickness:
1.50mm x 1.50mm x 3.00mm
File Fit:
No
Gapless:
No
Top Ring Thickness:
1.5mm
Second Ring Thickness:
1.5mm
Oil Ring Thickness:
3.0mm
Remanufactured:
No
Quantity:
Sold as a set of 8.
Notes:
0.030 in. over bore Big Block Chevy.
RaceTec AutoTec Forged Pistons
RaceTec's AutoTec line of forged pistons offers high-quality, precision manufactured options at competitive pricing. The primary material used for AutoTec pistons is 4032 high-silicone aluminum alloy which is extremely durable, has great wear resistance, a low expansion rate, and
is very low in friction.
The most common applications for AutoTec pistons include muscle car restorations, performance street rods, as well as many spec racing classes. They can also withstand mild nitrous kits, small turbos, or superchargers. A large selection of sizes and styles is available. Choose the proper fit for your application build.
Additional features for most pistons in the AutoTec line:
* CNC Precision machined ring grooves
* Top ring land gas distribution groove to enhance performance and improve ring seal
* Wrist pins, pin fitting, wire locks, broached pin oilers, and accumulator groove are included
* Diamond turned skirts
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
