Upgrading the camshaft in your 1955–1957 Chevrolet (Tri-Five) is one of the single most effective ways to transform its performance. The Edelbrock Performer RPM camshaft is a popular choice among enthusiasts because it delivers a broad power band, strong mid-range torque, and a satisfying exhaust note without sacrificing street manners. This guide provides a comprehensive, step-by-step walkthrough for installing the Edelbrock Performer RPM cam in a classic small-block Chevy (typically a 283, 327, or 350). Whether you’re a seasoned DIY mechanic or a Tri-Five owner taking on your first cam swap, these instructions will help you get the job done correctly.

Tools and Materials Needed

Before you start, assemble everything you’ll need. Having the right tools on hand prevents mid-job frustration and ensures a smooth installation.

  • Camshaft kit – Edelbrock Performer RPM camshaft (part #2102 for hydraulic flat tappet, or #7102 for hydraulic roller for later blocks)
  • Lifters – New hydraulic lifters (flat tappet or roller, matching cam type)
  • Timing chain and gears – Double-roller set recommended for durability
  • Gasket set – Timing cover gasket, intake manifold gasket, valve cover gaskets, and oil pan gasket (if removing pan)
  • Camshaft lubricant – Comp Cams cam break-in lube or equivalent
  • Engine oil – 10W-30 or 10W-40 with high zinc content (for flat tappet cams)
  • Tools: socket set (metric and SAE), combination wrenches, torque wrench (ft-lb and in-lb), harmonic balancer puller, timing cover puller (optional), screwdrivers, pliers, and a dial indicator with magnetic base (for degreeing the cam)
  • Miscellaneous: clean shop rags, oil filter, thread locker (blue Loctite), and a helper for lifting engine accessories

Important note for flat tappet cams: Always use a high-zinc break-in oil and cam lube on the lobes and lifter faces. The Edelbrock Performer RPM hydraulic flat tappet cam (2102) requires this critical step to avoid lobe failure.

Preparation and Disassembly

Step 1: Set Up the Engine

Work on a level surface with the engine in the car (or on a stand if the engine is pulled). Disconnect the negative battery terminal to prevent accidental starting. Drain the cooling system and remove the radiator and fan assembly to provide clearance at the front of the engine. If the car has a mechanical fan, remove it along with the fan shroud.

Step 2: Remove Accessories

Remove the following parts in order:

  1. Air cleaner assembly and carburetor (or throttle body if fuel injected).
  2. Intake manifold – label and disconnect any vacuum lines and wiring, then unbolt the intake using a crisscross sequence.
  3. Valve covers – set aside; you may reuse them with new gaskets.
  4. Distributor – note the rotor position for reinstallation (mark the distributor housing and intake surface).
  5. Alternator, power steering pump, and any brackets that block the front of the engine. Do not disconnect refrigerant lines if equipped with A/C; instead, move the compressor aside and secure it.

Step 3: Drain Fluids

Place a drain pan under the oil pan and remove the oil drain plug. Drain the engine oil completely. Remove the oil filter. This prevents old oil from contaminating the new cam and lifters.

Step 4: Remove the Timing Cover and Timing Chain

Remove the harmonic balancer (damper) using a puller. Unbolt the timing cover and carefully pry it off. Replace the timing cover gasket with a new one during reassembly. With the cover removed, take out the timing chain and camshaft gear. Loosen the cam bolt (it may require a large breaker bar) and slide off the chain and gear as an assembly.

Removing the Old Camshaft

Step 5: Remove the Lifters

The camshaft cannot be removed with the lifters in place. Remove the rocker arms, pushrods, and lifters. Use a magnetic retriever or a lifter removal tool. Keep the lifters organized by cylinder if you plan to reuse them (but it’s highly recommended to install new lifters with a new cam). For a hydraulic flat tappet cam, never reuse old lifters – they are already worn to the old cam lobes and will damage the new cam.

Step 6: Remove the Camshaft

Slide the old camshaft out through the front of the engine. Be extremely careful not to scratch the cam bearings. Use a gentle twisting motion while pulling straight out. If the cam is stuck, check that all lifters are removed. Once out, inspect the cam bearings for wear or scoring. If they are damaged, the engine must be pulled and bearings replaced before installing the new cam.

Installing the Edelbrock Performer RPM Camshaft

Step 7: Prepare the New Cam

Liberally apply the supplied camshaft lubricant to all cam lobes and distributor drive gear. Also apply a thin coat to the lifter faces (if using flat tappet lifters). For roller cams, use the manufacturer’s recommended assembly lube on the rollers and journals.

Step 8: Install the Camshaft

Insert the camshaft into the engine, rotating it slowly as you slide it through the bearings. Align the cam gear bolt holes with the thrust plate (if equipped) and secure the cam with the retaining bolt. Do not fully tighten yet – you will degree the cam later.

Step 9: Install the Timing Set

With the cam gear loosely bolted, install the timing chain on the crank gear and cam gear. Align the timing marks: on most small-block Chevy double-roller sets, the marks on both gears should be facing each other when the #1 piston is at Top Dead Center (TDC). Rotate the crank to TDC compression stroke, then install the chain. Tighten the cam bolt to the manufacturer’s torque spec (usually 35–45 ft-lb) using thread locker. Rotate the engine by hand a couple of times to verify smooth rotation and correct timing mark alignment.

For maximum performance, you should degree the cam to optimize valve timing. Use a degree wheel and dial indicator. Follow the Edelbrock cam card for intake centerline or duration at 0.050" lift. Adjust the cam’s position by using offset keys or adjustable timing sets until the numbers match. This step ensures the cam phasing is correct for your specific engine combination.

Step 11: Install Lifters, Pushrods, and Rocker Arms

Insert the new lifters into their bores (soak flat tappet lifters in oil for 30 minutes prior). Install the pushrods and rocker arms. Adjust the valve lash according to the cam manufacturer’s specs. For hydraulic lifters, tighten the rocker adjuster to zero lash (where the pushrod stops turning freely), then tighten an additional ½ to ¾ turn for preload. Do not over-tighten, as this can hold valves open.

Reassembly and Final Checks

Step 12: Reinstall the Timing Cover and Harmonic Balancer

Clean the timing cover mating surfaces. Apply a bead of RTV silicone at the corners of the oil pan and timing cover. Install the timing cover with a new gasket, torque bolts in sequence. Install the harmonic balancer using the correct puller/installer tool; never hammer it on. Torque the balancer bolt to 70 ft-lb (or spec for your engine).

Step 13: Reinstall the Intake Manifold

Clean the intake manifold and cylinder head surfaces. Place new gaskets (with correct sealing beads) on the heads. Apply a dab of RTV at the front and rear china walls. Install the intake manifold and torque the bolts in a crisscross pattern to 25–30 ft-lb. Reattach all vacuum lines, wiring, and the distributor (set timing approximately 8–12° BTDC initially).

Step 14: Reinstall Valve Covers, Fill with Oil

Install valve covers with new gaskets. Refill the engine with high-zinc break-in oil. Do not use synthetic oil for the first break-in period (500 miles). Install a new oil filter. Refill coolant, reconnect battery, and check for any loose bolts or tools.

First Start and Cam Break-In

Step 15: Initial Start Procedure

Before starting, prime the oil system: disable the ignition and crank the engine for 20–30 seconds until oil pressure registers on the gauge. This pre-lubes the cam and lifters. Reconnect the ignition, start the engine, and immediately bring the RPM to 2000–2500 RPM. Run the engine at this speed for the first 20 minutes, varying RPM slightly but never letting it idle. This constant high idle is critical for flat tappet cams to ensure lobes and lifters wear properly. Monitor oil pressure and coolant temperature. If you hear any abnormal tapping or knocking, shut down immediately and investigate.

Step 16: Post-Break-In Checks

After the 20-minute break-in, let the engine cool. Recheck valve lash (hydraulic lifters may need a minor adjustment), tighten any loose bolts, and check for leaks. Change the oil and filter after the first 20 minutes of run time, then again after 500 miles before switching to a high-quality conventional or synthetic-blend oil with adequate zinc.

Performance Tips and Common Pitfalls

  • Cam selection: The Edelbrock Performer RPM cam (224/234 duration at 0.050", 0.495"/0.503" lift) works best with the Edelbrock Performer RPM intake manifold, 650–750 cfm carburetor, headers or good exhaust manifolds, and at least 9.5:1 compression ratio.
  • Lifter choice: Use only high-quality lifters matched to the cam. Crower or Comp Cams hydraulic flat tappet lifters are reliable. For roller cams, use the Edelbrock kit.
  • Timing chain tension: A double-roller chain with a tensioner helps prevent cam timing drift.
  • Lubrication: Use proper break-in oil and avoid extended idling during break-in.
  • Valve spring compatibility: The Performer RPM cam may require heavier valve springs. Check your springs’ seat pressure (typically 100–110 lbs) and install new springs if they are weak or have high mileage.

Conclusion

Installing an Edelbrock Performer RPM camshaft in your Tri-Five Chevy is a rewarding project that delivers noticeable power gains across the RPM range. By following these detailed steps and paying close attention to proper break-in procedures, you can ensure a long-lasting, high-performance engine. Whether you are building a street cruiser or a weekend warrior, this cam swap will bring new life to your classic Chevy.

For more information on the Edelbrock Performer RPM cam kit and compatible components, check out Edelbrock’s official product page or shop at Summit Racing. For additional Tri-Five tech tips, visit the Tri-Five Chevy Forum.