Super Chevy Magazine Homepage Super Chevy
Get Adobe Flash player

Small-Block Chevy Crate Engine - Own Another Piece Of The Grump

Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Once the bottom end is done,... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Once the bottom end is done, which takes up most of the build time, things speed up.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The oil pump used in the 406... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The oil pump used in the 406 is a standard volume Melling oil pump.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The two-piece Comp Cams timing... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The two-piece Comp Cams timing cover that is being installed in this photo is for the test build engine.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The Canton oil pan has a seven-quart... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The Canton oil pan has a seven-quart capacity.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Jenkins and Smeding talk shop... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Jenkins and Smeding talk shop as Ben works on a set of cylinder heads.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The top half of the engine... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The top half of the engine consists of AFR 195 cylinder heads with 65cc combustion chambers.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The lightweight intake valves... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
The lightweight intake valves measure 2.050-inch and the exhausts are 1.600 with hardened ductile iron interlocking valve seats. The intake used is an Edelbrock Super Victor topped with a Quick Fuel 750 cfm double pumper.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Once the engine was on the... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Once the engine was on the dyno and the rings were seated, a few different tests and parts swaps were conducted.
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
After we left Smeding Performance,... 
   
  read full caption
Jenkins Smeding 406Ci Small Block Chevy Crate Engine
After we left Smeding Performance, they tried one last dyno run this time with a highly-tuned 850 cfm Quick Fuel carb with the Professional Products Hurricane intake. Ben informed us that the Quick Fuel carb was within 4 horsepower of the Mighty Demon. As for the final production version of this engine that hits the streets, well, that is up to Jenkins and Smeding.
Dyno Test 1
Maximum HP Maximum Torque
526@5,800 RPM 519@4,800 RPM

Dyno Test 2
Maximum HP Maximum Torque
554@6,100 RPM 535@5,000 RPM

Dyno Test 3
Maximum HP Maximum Torque
549@6,000 RPM

532@5,000 RPM

Air Flow Research
10490 Ilex Ave
Pacoima
CA  91331
Edelbrock
310.781.2222

edelbrock.com
Barry Grant Demon Carburetion Quick Fuel Technology
www.quickfueltechnology.com
Comp Cams
800.999.0853

compcams.com
Smeding Performance
Dart
248.362.1188

dartheads.com

Prev | 1  | 2

Discuss in Our Forums
Chevy Malibu Research
Chevy Malibu With great deals and authoritative reviews, find all you need to research and buy the new Chevy Malibu, as well as compare it with other vehicles to help you in your car buying process. The 2010 Malibu is offered with your choice of L4 engine, and can seat 5 people comfortably. Also check out the Chevrolet Camaro and the Chevy Monte Carlo.

Related Photos

Jenkins Smeding 406Ci Small Block Chevy Crate Engine Jenkins Smeding 406Ci Small Block Chevy Crate Engine
Jenkins Smeding 406Ci Small Block Chevy Crate Engine Jenkins Smeding 406Ci Small Block Chevy Crate Engine

Related Articles

 
C6 Chevrolet Corvette: Coupe VS. Convertible - A Tale Of Two Vettes
The 2007 C6 Corvette coupe and convertible got their rough edges refined as they went head-to-head... more
 
2011 Chevrolet Caprice Police Patrol Vehicle
Chevrolet announced the 2011 Chevrolet Caprice Police Patrol Vehicle at the International... more
 
1959 Chevrolet Impala - Power Monger
Rod Nance's '59 Impala appears stylish at first, but upon closer inspection it is clear that this... more
 
Dunn Chevrolet - The Lost Dealership of Roanoke
Until it closed in 2007, no one had any idea the treasure trove of NOS parts and GM nostalgia that... more

More Related Content