You are here:
- Home
- Autos
- Auto Repair
- American Motors
- 304 rockers
American Motors/304 rockers
Advertisement
Question
#1 What years did not have bridged rockers?
#2 I tightened the nuts holding my rockers on. Did not torque them, just tightened them pretty tight. Did I mess up?
#3 Did the early 70's 304's have more horsepower? I've heard they did and I've heard they didn't.
Thanks in advance,
John
1) V-8 bridge rockers were used starting in 1974.
2) Tightening your rocker nuts are OK. They are not adjustable.
3) Two things happened in 1971/72 models. SAE changed the way horsepower was calculated and stated, going to NET HP. Second, because of emissions and low lead fuel, compression ratios were dropped, often by enlarging the volume of the combustion chambers. This is what caused the hp to drop.
Related Articles
- Definition of Compression Ignition - What is Compression Ignition
- Stratified Charge - Definition of Stratified Charge - What is Stratified Charge
- PREIGNITION
- Homogeneous Charge - Definition of Homogeneous Charge - What is Homogeneous Charge
- How Does a Fuel Injector Work - What is a Fuel Injector - Fuel Injector Schematic Diagram
Kevin Pilotte
Expertise
I can answer many technical questions relating to AMC vehicles prior to 1979. I also have experience with Rambler & Nash vehicles.
Experience
I am a former AMC technician, service writer and service manager. I have worked in AMC dealers in Illinois in the 70's. After college, I was a Field Service Rep for American Motors Sales Corporation, working out of the Chicago Zone office. I traveled to AMC dealers assisting in the diagnosis and repair of AMC vehicles. I was also the Area Training Manager for DeLorean Motor Company. I have 10+ years as an Automotive Instructor. I have modified and restored
numerous AMC vehicles. I have been working on AMC vehicles for over 30 years.
Organizations
I have been an ASE Certified Master Technician since 1975. This includes L1. I am also currently a Toyota Certified Master Diagnostic Technician.
Publications
I have articles in "American Motoring", the official publication of the American Motors Owners Association. They are the largest AMC club in the world.
Education/Credentials
I have a certificate I printed out from a website.
©2012 About.com, a part of The New York Times Company. All rights reserved.