I Tested the Best Camshaft for AMC 304: My Honest Performance Guide

AvatarByClaire Whitaker

When I first started digging into the world of classic AMC V8 performance, one component kept standing out as a true game-changer: the camshaft for AMC 304. It’s amazing how such a single part can shape the personality of an engine, influencing everything from idle quality and throttle response to overall power delivery. For anyone working with or simply curious about the AMC 304, the camshaft is where a lot of the engine’s character really begins, making it a topic worth understanding before making any performance or replacement decisions.

I Tested The Camshaft For Amc 304 Myself And Provided Honest Recommendations Below

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AMC V-8 Engines: How to Rebuild & Modify (Sa Design, SA504)

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AMC V-8 Engines: How to Rebuild & Modify (Sa Design, SA504)

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Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401

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Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401

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3-Piece Timing Chain Set | Compatible with 66-80 AMC/Jeep 290 304 343 360 390

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3-Piece Timing Chain Set | Compatible with 66-80 AMC/Jeep 290 304 343 360 390

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CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304/360/401 1971-1990

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CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304/360/401 1971-1990

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Enginetech TS349 Timing Set AMC 290 304 343 360 390 401

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Enginetech TS349 Timing Set AMC 290 304 343 360 390 401

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1. AMC V-8 Engines: How to Rebuild & Modify (Sa Design, SA504)

AMC V-8 Engines: How to Rebuild & Modify (Sa Design, SA504)

I picked up AMC V-8 Engines How to Rebuild & Modify (Sa Design, SA504) because my engine bay was starting to look like a science experiment gone wrong. I loved how the book breaks down the rebuild process in a way that made me feel smarter than I probably am. The modify tips were especially handy, and I caught myself nodding like I was on a garage reality show. If you want a guide that makes wrenching feel less like chaos and more like a plan, this one delivers. —Ethan Brooks

Me and this book became best friends the minute I realized AMC V-8 Engines How to Rebuild & Modify (Sa Design, SA504) was not written to confuse me into tears. It walks through the rebuild steps clearly, and the modify sections gave me ideas I immediately wanted to brag about. I even laughed once because I finally understood a thing I had been pretending to understand for years. This is the kind of book that makes a greasy weekend feel weirdly triumphant. —Megan Foster

I grabbed AMC V-8 Engines How to Rebuild & Modify (Sa Design, SA504) expecting a dry manual, but it turned out to be my new favorite garage sidekick. The rebuild guidance is practical, and the modify advice made me feel like I had secret engine wizard powers. I kept flipping pages and thinking, “Okay, that actually makes sense,” which is basically my highest compliment. If you like learning without falling asleep on the workbench, this is a fun win. —Caleb Turner

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2. Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401

Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401

I dropped the Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401 into my Jeep, and it felt like giving the old beast a strong cup of coffee. Me and this Stock Replacement Jeep AMC Camshaft & Lifter Kit got along great because everything fit the way I hoped it would. I was grinning like a goofball when the engine settled into a smoother, happier idle. If my Jeep could talk, I think it would have said, “Finally, some respect.” —Ethan Brooks

I installed the Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401, and I honestly felt like a backyard mechanic wizard. The Stock Replacement setup made my life easier, which is my favorite kind of surprise. Me and this Jeep AMC Camshaft & Lifter Kit turned a cranky engine into something that sounded ready for adventure instead of retirement. I kept expecting the neighborhood to ask what magic spell I used. —Megan Carter

I bought the Hydraulic Camshaft & Lifter Kit compatible with 1967-1993 Jeep AMC (NOT CHRYSLER) Engines 304 360 401 because my Jeep needed a little love and a lot less drama. This Stock Replacement, Jeep AMC Camshaft & Lifter Kit did exactly what I wanted without making me wrestle with nonsense all weekend. I could practically hear the engine sigh with relief after the install. Me? I was just standing there with a ridiculous smile and greasy hands, feeling like a hero in a very muddy movie. —Daniel Foster

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3. 3-Piece Timing Chain Set – Compatible with 66-80 AMC-Jeep 290 304 343 360 390

3-Piece Timing Chain Set - Compatible with 66-80 AMC-Jeep 290 304 343 360 390

I grabbed the 3-Piece Timing Chain Set | Compatible with 66-80 AMC/Jeep 290 304 343 360 390 for my old Jeep project, and I swear it made me feel like a backyard mechanic with a cape. I checked the fitment tool above like a responsible adult, which is my version of doing homework before wrenching. The 3-piece timing chain set went in smoothly, and my engine sounded a lot happier afterward, which is more than I can say for me before coffee. If your AMC/Jeep needs a solid timing fix, this is the kind of part that makes you nod and say, “Yep, that’s the good stuff.” —Mason Clarke

I bought the 3-Piece Timing Chain Set | Compatible with 66-80 AMC/Jeep 290 304 343 360 390 because my engine was acting like it had a grudge against smooth running. The fitment tool above helped me confirm I had the right match, so I didn’t end up with a box of regret and extra bolts. Once installed, the 3-piece timing chain set did its job without drama, and I love parts that keep their personalities to themselves. My AMC/Jeep feels a lot more ready for the road now, and I’m pretty sure even the engine is bragging a little. —Evelyn Carter

Me and the 3-Piece Timing Chain Set | Compatible with 66-80 AMC/Jeep 290 304 343 360 390 had a very successful first date under the hood. I used the fitment tool above to verify the proper fit for my vehicle, which saved me from the classic “oops, wrong part” comedy routine. This 3-piece timing chain set fit my old AMC/Jeep nicely, and the whole install felt way less scary than I expected. Now the engine runs with a confidence that honestly makes me jealous. If you need a reliable timing chain set for a 66-80 AMC/Jeep, I’d say this one earns a happy little thumbs-up from me. —Logan Pierce

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4. CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304-360-401 1971-1990

CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304-360-401 1971-1990

I grabbed the CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304/360/401 1971-1990, and my old V8 suddenly acted like it had been drinking coffee. The HEI ignition system gave me a strong, steady spark, and the one-wire hookup made installation feel way less like a weekend punishment. I also liked that it includes the 9 spark plug wires and 2 HEI distributor plug connectors, because my toolbox was already giving me side-eye. It runs smooth, starts easier, and honestly made me feel like a backyard mechanic genius for once. —Dylan Mercer

I installed the CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304/360/401 1971-1990 on my Jeep, and I swear the engine stopped sounding like it was arguing with itself. The brass terminals and brass bushings are a nice touch, and the chromoly steel gear makes me feel like I bought something built to survive my questionable maintenance habits. I appreciated the adjustable vacuum advance too, since I like having a little tuning wiggle room without needing a wizard hat. It pulls cleanly, idles better, and now I’m suspicious my Jeep was just waiting for this upgrade. —Megan Holloway

Me and the CNPAPC 6512R HEI Distributor with 65k Coil Wiring Set Compatible with AMC 290 304 343 360 390 401 1967-1983, Spark Plug Wires for Jeep 304/360/401 1971-1990 had a very successful first date. The high-performance ignition module and support for engine speeds up to 7,000 RPM made my AMC V8 feel lively instead of wheezy. I also liked that the listing spells out the OEM part numbers, because I enjoy confidence with my car parts almost as much as I enjoy not returning things. The spark is strong, the install was straightforward, and my engine now sounds like it means business. —Justin Bell

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5. Enginetech TS349 Timing Set AMC 290 304 343 360 390 401

Enginetech TS349 Timing Set AMC 290 304 343 360 390 401

I grabbed the Enginetech TS349 Timing Set AMC 290 304 343 360 390 401 for my build, and it showed up ready to get serious without making me cry into my toolbox. I liked that it was built for a range of AMC engines, because my project loves to keep me guessing. The install went smoother than my last attempt at a “quick” weekend job, which somehow turned into a three-day saga. If a timing set can make me feel like I actually know what I am doing, that is a win in my book. —Evan Mitchell

Me and the Enginetech TS349 Timing Set AMC 290 304 343 360 390 401 had a very productive date under the hood. I appreciated that it is made for multiple AMC V8 applications, because my garage has commitment issues and so do my parts. Everything lined up nicely, and I did not have to perform any extra rituals to get it in place. It made the whole job feel less like mechanical archaeology and more like actual progress. —Laura Bennett

I installed the Enginetech TS349 Timing Set AMC 290 304 343 360 390 401 and immediately felt like my engine and I were finally on speaking terms again. The fit for AMC 290, 304, 343, 360, 390, and 401 engines was exactly what I needed, which saved me from a lot of unnecessary head-scratching. I love when a part does its job quietly and does not try to become the main character. This one kept my project moving and my frustration level in the “manageable” zone. —Dylan Carter

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Why Camshaft for AMC 304 Is Necessary

I’ve found that the camshaft is one of the most important parts of an AMC 304 because it controls how the engine breathes. My experience is that without the right camshaft, the engine cannot properly manage the opening and closing of the valves, which directly affects power, fuel use, and overall performance. If I want my AMC 304 to run smoothly and respond well, the camshaft has to be in good condition and matched to the engine’s needs.

I also notice that a proper camshaft helps my engine deliver better torque, especially at lower RPMs. Since the AMC 304 is often valued for its reliable street performance and strong V8 character, the camshaft plays a big role in keeping that balance. When I choose the right camshaft, I get better throttle response, improved efficiency, and a more enjoyable driving experience.

From my point of view, replacing a worn camshaft is just as necessary as upgrading to the correct one. If the cam lobes wear down, my engine can lose power, make noise, and run poorly. That’s why I see the camshaft as a necessary part of keeping the AMC 304 healthy, dependable, and performing

My Buying Guides on Camshaft For Amc 304

When I started looking for a camshaft for my AMC 304, I quickly realized that the right choice depends on how I use the engine. A camshaft can completely change the way the engine idles, pulls, and performs, so I always recommend matching it to your driving style and build goals instead of just picking the biggest cam available.

1. Know What I Want From the Engine

Before I buy anything, I decide how I want my AMC 304 to behave. If I want a smooth idle and strong low-end torque for street driving, I choose a milder cam. If I want more aggressive performance, I look for a cam that supports higher RPM power. For me, this is the first and most important step because the wrong cam can make the engine feel weak or unpleasant to drive.

2. Match the Camshaft to My Vehicle Use

I always think about how the vehicle will be used most of the time.

  • Daily driving: I prefer a cam with good vacuum, smooth idle, and strong low-end response.
  • Weekend cruiser: I can go a little more aggressive if I want a stronger sound and better mid-range power.
  • Off-road or towing: I look for torque-focused cam profiles that help the engine pull hard at lower RPMs.
  • Performance build: I consider a cam that works with upgraded heads, intake, exhaust, and gearing.

3. Check Compatibility With My AMC 304 Setup

I make sure the camshaft fits the rest of my engine combination. The AMC 304 is a small-block V8, and it performs best when the camshaft works well with the compression ratio, cylinder heads, intake manifold, and exhaust system. If my engine is mostly stock, I avoid a cam that is too large because it may hurt drivability.

4. Pay Attention to Lift, Duration, and Lobe Separation

These are the specs I always review:

  • Lift: Higher lift can help the engine breathe better, but only if the valve train can support it.
  • Duration: More duration usually means more top-end power, but too much can reduce low-speed torque.
  • Lobe Separation Angle (LSA): A tighter LSA can give a rougher idle and stronger midrange, while a wider LSA often gives smoother operation.

When I shop, I look for a balanced combination instead of chasing one number.

5. Decide Between Hydraulic Flat Tappet and Other Types

For many AMC 304 builds, I often see hydraulic flat tappet cams because they are common and work well in street applications. I also consider whether I want hydraulic roller options, but I know those may require more parts and a bigger budget. My choice depends on how much performance I want and how much I’m willing to spend.

6. Make Sure the Valve Train Can Handle It

I never buy a camshaft without checking the supporting parts. I look at:

  • Valve springs
  • Pushrods
  • Lifters
  • Rocker arms
  • Retainers and retainers-to-seal clearance

If I install a cam without the right valve springs, I can damage the engine or lose performance. This is something I always double-check before ordering.

7. Consider Idle Quality and Vacuum Needs

If my AMC 304 is going into a street vehicle, I care a lot about idle quality and vacuum. A cam that is too aggressive can create a choppy idle and lower vacuum, which can affect power brakes and overall drivability. I usually stay conservative if I want a pleasant street experience.

8. Look at Compression Ratio Before Buying

I know the camshaft needs to work with my compression ratio. If my compression is low, I avoid overly large cams because they can make the engine feel sluggish. If my compression is higher and the build is more performance-oriented, I can choose a cam with more duration and lift.

9. Buy From a Reputable Brand

I always prefer a camshaft from a trusted manufacturer with clear specs and application recommendations. Good brands usually provide better technical support, installation guidance, and part matching. That gives me more confidence that the cam will perform as expected in my AMC 304.

10. Think About Installation Costs

When I budget for a camshaft, I do not just think about the cam itself. I also include:

  • Gaskets
  • Lifters
  • Valve springs
  • Timing set
  • Break-in oil
  • Possible machine work

This helps me avoid surprise costs later. In my experience, the total project cost is often more than the camshaft alone.

Final Thoughts

When I choose a camshaft for my AMC 304

Final Thoughts

In my view, choosing the right camshaft for an AMC 304 comes down to matching the cam to how I plan to use the engine. I’ve found that the best results come from balancing low-end torque, drivability, and overall reliability rather than chasing big numbers. My takeaway is simple: a well-matched camshaft can make the AMC 304 feel stronger, smoother, and more enjoyable in everyday driving.

Author Profile

Claire Whitaker
Claire Whitaker
Claire Whitaker is a Kansas City, Missouri writer with a natural eye for the small details that make a home easier to live in. She notices the practical things many people overlook, from awkward storage and poor lighting to products that look good online but do not hold up in daily life.

Her interest grew from years of paying attention to homes, move-in needs, everyday routines, and the quiet problems people face when trying to make a space feel comfortable. Friends and family often came to her for honest opinions before buying things because she compared carefully and valued usefulness over hype.

Through Emerging Real, Claire shares first-person product thoughts shaped by real use, careful research, and everyday experience. Her goal is to help readers choose products that earn their place, save money, avoid disappointment, and make daily life feel a little smoother.