Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Instruction Sheets for Part Number NAL-12568774
Technical Articles for Part Number NAL-12568774
Chevrolet Performance 454 C.I.D. HO 438 HP Long Block Crate Engines 12568774
Part Number: NAL-12568774
Not Available
Chevrolet Performance 454 C.I.D. HO 438 HP Long Block Crate Engines
Engine Assembly, Crate Engine, Chevy, 454 HO, 438 hp, Cast Iron Rectangle Port Heads, Each
See More Specifications
Overview
Brand:
Manufacturer's Part Number:
12568774
Part Type:
Product Line:
Summit Racing Part Number:
NAL-12568774
Crate Engine Family:
Chevy Big Block
Actual Engine Displacement:
7.4L/454
Crate Engine Cylinder Head Material:
Cast iron
Engine Block Material:
Cast iron
Assembled:
Yes
Engine Balance:
External
Cam Style:
Hydraulic roller, OE roller
Rear Main Seal Style:
1-piece
Intake Manifold Included:
Yes
Intake Manifold Style:
Carbureted
Cylinder Heads Included:
Yes
Carburetor Included:
No
Throttle Body Included:
No
Distributor Included:
No
Oil Pan Included:
Yes
Valve Covers Included:
Yes
Timing Cover Included:
Yes
Water Pump Included:
Yes
Harmonic Balancer Included:
Yes
Flexplate Included:
Yes
Flywheel Included:
No
Air Cleaner Included:
No
Spark Plugs Included:
No
Spark Plug Wires Included:
No
Computer Included:
No
Wiring Harness Included:
No
Supercharger Included:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
This engine is not designed, nor intended to be used in any marine applications. Designed for pre-1976 street vehicles or any off-road vehicle. Engines installed in vehicles registered and normally operated outside of the United States carry no warranty. Clutch linkage bosses are drilled and tapped, plus includes a provision for a mechanical fuel pump.
Chevrolet Performance 454 C.I.D. HO 438 HP Long Block Crate Engines
The Chevrolet Performance 454 c.i.d. HO offers tremendous value in a long block crate engine. It's based on the Gen VI 4-bolt mains with 1-piece rear main seal blocks—with approximately 8.75:1 compression, 438 hp at 5,300 rpm, and 500 lbs.-ft. of torque at 3,500 rpm. The "HO" stands for High Output, which means you get forged steel externally balanced crankshafts, forged steel LS6/LS7 "dimple" rods, shot peened and magnafluxed with 7/16 in. rod bolts.
Other features and specs include:
* Forged aluminum pistons
* Hydraulic roller camshafts with .510 in. intake lift, .540 in. exhaust lift
* Duration at .050 in. for intake is 211 and 230 for exhaust; lobe centerline is 112 degrees
* Cast iron cylinder heads with rectangular port 118cc combustion chambers
* 325cc intake runner volume with 2.19 in. intake valves and 1.88 in. exhaust
* Heads are configured for 3/8 in. thread 7/16 in. shank rocker arm studs
* Stamped steel self-aligning 1.7:1 ratio rocker arms come installed along with ACDelco spark plugs
* Also included with this crate engine: oil pan, black powdercoated aluminum valve cover, black powdercoated aluminum timing cover, long-style cast iron "V" belt rotation water pump, 8 in. harmonic balancer, and 14 in. automatic flexplate
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
