Cost Breakdown: Installing a 6.4 Hemi Cam Upgrade with Crane Cams on a Budget

Understanding the 6.4 Hemi Cam Upgrade

Upgrading the camshaft in a 6.4 Hemi engine is one of the most effective ways to unlock significant horsepower and torque gains. The factory camshaft in the 6.4 Hemi (found in Dodge Charger Scat Pack, Challenger R/T Scat Pack, Jeep Grand Cherokee SRT, and many Ram trucks) is designed for a balance of emissions, fuel economy, and reliability. Aftermarket cams from companies like Crane Cams, Comp Cams, or custom grinders can shift that balance toward raw performance. This article provides a detailed cost breakdown for a Crane Cams cam upgrade, focusing on budget-conscious enthusiasts who want to maximize value without cutting corners on critical components.

A camshaft controls the opening and closing of intake and exhaust valves. By changing the lobe profiles—lift, duration, and lobe separation angle—you alter the engine’s volumetric efficiency. The 6.4 Hemi responds exceptionally well to cam upgrades because its large displacement (392 cubic inches) and factory heads flow well; a cam can fill in the missing mid-range and top-end power. Expect gains of 30–60 wheel horsepower and 20–40 lb-ft of torque on a otherwise stock motor, with even more when paired with supporting mods like headers, intake, and tuning.

Before diving into costs, understand that a cam upgrade is not a standalone project. It requires disassembly of the top end of the engine, removal of the timing chain, valve springs (usually upgrade required), and often the lifters. The 6.4 Hemi uses a cam-in-block design with a timing chain guided by a hydraulic tensioner. Proper installation demands mechanical skill and specialized tools, but with careful planning, a DIY enthusiast can save hundreds or even thousands in labor.

Full Cost Breakdown: 6.4 Hemi Cam Upgrade with Crane Cams

The total cost ranges from around $600 (bare minimum DIY with only a cam and reused parts) to $2,500+ (professional installation with all supporting mods). Below is a comprehensive breakdown by category. Prices are as of 2025 and typical for US markets.

1. Camshaft Cost – Crane Cams Options

Crane Cams offers several grinds for the 6.4 Hemi. Prices vary based on profile complexity (billet vs. cast iron core) and whether it's a "shelf" grind or custom. Typical price points:

Stage 1 mild upgrade (cast iron, 212/218 duration, .550/.550 lift): $350 – $450. Designed for stock converter and mild daily driving. Minimal need for converter upgrade.
Stage 2 moderate (218/224 duration, .575/.575 lift): $450 – $600. Good street/strip balance. May require stall converter upgrade (2500-2800 RPM) for best results.
Stage 3 aggressive (224/230 duration, .600/.600 lift): $600 – $800. Requires converter upgrade (3000+ RPM), better heads, and possible valve reliefs. Not recommended for stock daily driver.
Custom grind (billet core, specs tailored to your combination): $700 – $950. Talk to Crane Cams or a specialist like BES Racing Engines.

Crane Cams official website shows current part numbers and tech info. Always verify compatibility with your engine year (early 6.4 vs later with MDS or without) – pre-2015 engines may have different cam sensor locations.

2. Required Supporting Parts

Skipping these is a recipe for failure. The stock valve springs are inadequate for lifts above .550" – they will coil bind or lose pressure, causing valve float at high RPM. Additionally, the stock pushrods are typically made of thin-wall plastic? Actually, they are steel but length is critical for lifter preload. Recommended parts:

Valve springs (dual or beehive): $200 – $400. Brands like PAC, PSI, or Manton. Crane Cams may recommend a specific spring kit. Budget $250.
Pushrods (custom length, hardened): $120 – $250. Smith Brothers or Manton. Must measure after install for correct length. Expect $150.
Lifters (non-MDS or MDS delete): $200 – $500. If your engine has MDS (cylinder deactivation), you can either delete it (install non-MDS lifters and plugs) or use MDS-compatible lifters. Non-MDS conversion is common. Set of 16 lifters ~$300.
Timing chain and tensioner: $100 – $200. 6.4 Hemi timing chain wear is common; while you're in there, replace with a high-quality Cloyes or stock replacement. Tensioner ~$50.
Gaskets & seals: $60 – $120. Valve cover gaskets, timing cover, front main seal, cam seal, oil pan gasket (if removed). Use Fel-Pro or OEM.

3. Additional Upgrades That Maximize the Cam

These are not mandatory but strongly recommended for the full benefit. They add cost but improve power, reliability, or both.

High-flow oil pump (Melling or stock high-volume): $150 – $300. The 6.4 Hemi can have oil pressure issues with aggressive cams at high RPM. High-volume pump ensures lubrication.
Underdrive pulley (ATI or Fluidampr): $400 – $600. A damper improves harmonic balance and reduces accessory drag. Many builders consider this essential for high-RPM reliability.
Headers (long tube): $600 – $1,200. Headers free up exhaust flow downstream of the cam. Without them, the cam's potential is choked. American Racing or Kooks.
Tuning (custom flash via HP Tuners or Diablo): $300 – $700. The factory ECU cannot adapt to a new cam; you'll need a tune. Custom remote tuning is $350-$500. A dyno tune is $600-$700.
Torque converter (if automatic transmission): $500 – $1,200. As mentioned, aggressive cams shift the power band higher. A higher stall converter (2500-3500 RPM) is often needed. Circle D or Yank converters.
Cold air intake and throttle body: $200 – $400. Not necessary but helps air flow.

4. Tools Required (If DIY)

If you don't own these, factor in rental or purchase costs.

Camshaft alignment tool (Hemi-specific): $30 – $60. UPM sells one.
Valve spring compressor (on-head): $40 – $100.
Torque wrench (3/8" and 1/2") + inch-lb wrench: $50 – $150 total.
Pushrod length checker: $20 – $40.
General socket set, pry bars, seal pullers, engine hoist (if removing engine): Already own or borrow.
Lubricants (assembly lube, thread locker, etc.): $20 – $30.

5. Labor Costs

This is the biggest variable. A professional shop can charge 8–15 hours for a cam swap on a 6.4 Hemi. Rates average $100–$150 per hour. Some shops quote flat rates around $1,000–$1,800 for labor alone if you bring in the car ready. If you have a truck or SUV (e.g., Ram or Jeep), labor may be higher due to additional disassembly. DIY labor is free, but expect a full weekend: 12–20 hours depending on experience and if you run into issues like broken bolts or tight clearances.

Option	Labor Cost	Time Estimate
DIY (skilled amateur)	$0	12-20 hours
DIY (first-timer)	$0 (but high risk of mistakes)	20-30 hours
Professional shop	$800 - $1,800	8-15 hours shop time
Mobile mechanic (at home)	$500 - $1,000	2-3 days

Total Estimated Budget Scenarios

Here are three realistic scenarios for a Crane Cams Stage 2 upgrade on a 6.4 Hemi (automatic transmission). These assume the driver already has basic tools and does not need to buy an engine hoist. Prices are mid-range estimates.

Budget DIY (Absolute Minimum)

Camshaft (Crane Stage 2 cast): $500
Valve springs (basic dual): $250
Pushrods (custom, measured): $150
Gaskets & seals: $80
Timing chain & tensioner: $150
Lifters (non-MDS, basic): $250
Assembly lube & misc: $30
Total parts: $1,410
Labor: $0
Dyno tune only (remote): $400
Grand total: ~$1,810

Note: This scenario skips oil pump, underdrive pulley, headers, and torque converter. The car will gain ~40 whp but may have sluggish low-rpm response and requires a tune. Not ideal for daily driving with stock converter.

Intermediate DIY (Sensible Budget Build)

Camshaft (Crane Stage 2): $500
Valve springs (PAC dual): $300
Pushrods: $150
Gaskets & seals: $80
Timing chain & tensioner: $150
Lifters (Manton non-MDS): $350
Oil pump (Melling high-volume): $200
Underdrive pulley (ATI): $500
Long tube headers (TSP): $700
Torque converter (Yank 3200): $800
DIY tools (spring compressor, cam tool): $100
Total parts: $3,830
Labor: $0 (DIY)
Dyno tune: $700
Grand total: ~$4,530

This is the sweet spot. The converter and headers allow the cam to shine. Expect 50-70 whp gains and a car that pulls hard from 3000 to 6500 RPM. All supporting parts protect engine reliability.

Professional Install (Full Build)

Parts as above (intermediates): $3,830
Labor: $1,500
Dyno tune (shop: $700)
Grand total: ~$6,030

If you're not comfortable doing the work, paying a shop is money well spent to avoid broken rockers or timing chain misalignment. Many shops also offer package deals on parts and labor.

Ways to Stay on Budget Without Sacrificing Quality

Smart shopping can save 15-25% on a cam kit. Try these:

Buy a complete cam kit: Many vendors (e.g., Summit Racing, Jegs) sell bundled kits with cam, springs, retainers, pushrods, and gaskets. This reduces individual shipping costs and ensures compatibility.
Use core exchange: Send your old cam to get a discount on the new one. Some shops offer $50-100 off.
Watch for sales: Black Friday, Memorial Day, and end-of-year clearance often knock 10-20% off performance parts.
Buy used but parts: Cams are tough; a used Crane or Comp cam in good condition (no lobe wear, pitting) can be $200-300. Springs are wear items – buy new.
Rent or borrow tools: For the one-time use cam alignment tool, ask on forums like HellcatForum or ChallengerTalk.
Do the tuning yourself: If you have an HP Tuners setup and some knowledge, a tune file from a reputable guru (e.g., Dusterhoff, Hemifever) costs $200-300 for remote tuning, saving $300+ over a dyno session.
Consider a custom grind from a smaller builder: Companies like Cam Motion or Comp Cams can match Crane quality for less if you buy direct.

Potential Pitfalls That Increase Cost

Budgeting is not just about parts cost; avoid these issues that will force more spending:

Piston-to-valve clearance: With aggressive cams (lift > .600", duration > 230°), you may need to fly cut pistons. That adds $300-600 for machine work. Always measure.
Broken bolts or stripped threads: Use quality tools and never force. Head bolts often require replacement if stretched. Budget for a set of ARP head bolts ($200) if you pull heads.
MDS deletion and CEL: OBD2 monitors will trigger check engine light for MDS if not properly coded out in tune. Some tuners charge extra for full disable.
Damaged cam sensor: The 6.4 Hemi cam sensor is fragile; break it and replacement is $50+ and additional labor.
Timing chain misalignment: If you skip replacing the tensioner or don't set the cam timing correctly, the chain can slap and destroy guides. Another $300-500 repair.

Performance Expectations vs. Cost – Is It Worth It?

Compared to forced induction (supercharger kit: $6,000-$8,000 installed), a cam-only build is cheap. A mild cam package (Stage 1) with minimal supporting parts can give 30 whp for around $1,500 all-in (DIY). That's $50 per horsepower – excellent value. A full intermediate build for $4,500 yields 60-70 whp, around $65 per horsepower. In contrast, a procharger kit can cost $100+ per horsepower. The driving experience also changes: cammed Hemis have an unmistakable lope and aggressive sound, plus strong mid-range pull.

However, a cam is not a "bolt-on and forget" mod. It requires ongoing maintenance: checking valve lash (if solid lifters, but hydraulic lifters are self-adjusting), periodic oil changes with proper weight (usually 0W-40 or 5W-30 synthetic), and potentially shorter spark plug life. Factor in $100-200 extra per year in consumables.

Final Advice for the Budget-Conscious 6.4 Hemi Owner

Start with a clear goal: Is this a weekend toy or a daily driver? If it's a daily, choose a Crane Stage 1 or Stage 2 mild cam, keep stock converter, and invest in quality tuning. You'll still enjoy 30-40 whp without drivability headaches. If you want the ultimate street/strip fun, plan to spend $4,000-$5,000 on a full package including converter, headers, and tune.

Always consult engine builders or experienced tuners before finalizing cam specs. Call the tech line at Crane Cams (they are helpful) or check the Hemifever tuning blog for dyno charts. Remember: buying cheap parts can lead to expensive failures. Stick with trusted brands like Crane, Comp, PAC, Manton, ATI, and Melling. Labor is the one area you can save by learning to wrench, but time is also a cost. Be honest about your skill level – a botched install can turn a $1,800 budget into a $3,000 repair.

In summary, a 6.4 Hemi cam upgrade with Crane Cams is one of the most rewarding performance modifications for the money. By planning your budget wisely, buying only what you need, and investing in tuning, you can transform your truck or muscle car into a tire-shredding beast without emptying your wallet. Happy building!