Why Rebuild Instead of Swap for Your 1967 Camaro

The small-block Chevy (SBC) in your 1967 Camaro is a legendary platform, but after decades of use, it’s likely tired. Swapping in a modern LS engine can cost $8,000–$12,000 by the time you fit mounts, harness, and accessories. A rebuild keeps the car’s original character, costs far less, and can yield a reliable 300+ horsepower for street driving. With careful part selection, $3,500 buys a solid long-block refresh that delivers 50 more horsepower over a stock 1967 327 (which made about 210–275 hp depending on configuration).

Understanding the Rebuild Scope

A full rebuild means machining the block, replacing pistons and rings, reconditioning the crankshaft, freshening the cylinder heads, and installing a new camshaft, timing set, gaskets, and seals. This article assumes you do the disassembly and reassembly labor yourself, saving $1,000 or more. If you pay a shop for labor, add $1,500–$2,500 to the budget.

We’ll target a 1967 Camaro with a 327 cubic-inch V8, but the same budget works for a 350 or 383 stroker if you spend wisely.

Detailed Cost Breakdown (Real Parts, Real Prices)

Prices are from major suppliers like Summit Racing and JEGS, current as of early 2025. Machine work costs vary by region.

Block and Short Block

  • Hot tank and magnetic crack inspection: $125–$175. Most machine shops charge ~$150. Includes cleaning all oil passages.
  • Bore and hone (0.030″ over): $200–$300. A typical price is $250 for eight cylinders.
  • Deck block (if necessary): $100–$150. Often needed to true the surface.
  • Main bearing bore alignment: $50–$100 (if needed). Budget $75.

Subtotal: $475

Rotating Assembly

  • Sealed Power hypereutectic pistons (0.030 over) with rings: $250–$300. A kit like Sealed Power P239730P is about $270.
  • Connecting rod reconditioning (new bolts, resize): $150–$200. Budget $175.
  • Crankshaft polishing or grinding (0.010/0.010 under): $150–$250. A polish is cheaper; grinding adds $100. Assume $200.
  • Main and rod bearings (Clevite 77): $80–$100.
  • Harmonic balancer (new, stock-style): $60–$90.

Subtotal: $735

Camshaft and Valvetrain

  • Performance camshaft (e.g., Comp Cams XE262H): $180–$220. Adds 30–50 hp over a stock 327 cam. Comp Cams 12-240-3 is ~$200.
  • Lifters (hydraulic flat tappet): $50–$80.
  • Timing chain set (double roller): $40–$60.
  • Pushrods, rocker arms (reuse stock after cleaning): $0–$50. You can reuse stock rockers, but new pushrods might be needed for cam lift. Budget $30 for pushrods.
  • Valve springs (for cam upgrade): $60–$80.

Subtotal: $410

Cylinder Heads

  • Machine work (valve job, new guides, seat cut): $250–$350 per pair. Often $300.
  • Valves (new stainless, 1.94 intake/1.50 exhaust): $80–$120.
  • Valve seals and stem seals: $20.
  • Head surface milling (if compression needed): $40–$80. Optional; add $60.

Subtotal: $460

Gaskets, Seals, and Hard Parts

  • Fel-Pro full gasket set (including intake, exhaust, head, pan): $120–$150.
  • Oil pump (Melling M55): $35–$50.
  • Oil pan gasket (one-piece): $25–$35.
  • Freeze plugs (brass): $15–$25.
  • Misc. consumables (thread sealer, assembly lube, degreaser): $50.

Subtotal: $285

Other Essential Items

  • Timing cover gasket and front seal: $15–$25.
  • Valley pan (SBC uses an intake manifold gasket setup): included in gasket set.
  • Fuel pump pushrod (inspect replace if worn): $15.
  • Dipstick tube and seal: $10.
  • Oil filter (K&N or Wix): $10–$15.

Subtotal: $60

Machine Work Total

Bore, hone, deck, crank grind, rod reconditioning, head work: ~$1,010 (including inspections and hot tank).

Parts Total

Pistons, rings, bearings, cam, lifters, timing set, gaskets, oil pump, etc.: ~$1,575.

Contingency and Shipping

$200 for unexpected machine work (e.g., line bore if block is out of spec) or shipping charges.

Grand Total: ~$2,785. This leaves $715 in your $3,500 budget for upgraded intake, carburetor, or ignition to reach the 50-hp goal.

Delivering the Extra 50 Horsepower

The rebuild alone with a decent cam might add 30 hp. You need targeted bolt-ons to cross the 50-hp threshold. Here’s the plan.

Camshaft Choice

We already accounted for the Comp XE262H. It’s a mild performance grind: 262°/268° duration, .462″/.470″ lift. This cam shifts the power band up but still works with stock torque converter and 3.08–3.55 gears. Expect +30 hp over a stock 327 cam.

Intake Manifold Upgrade

Replace the stock cast-iron intake with an aluminum dual-plane manifold like the Edelbrock Performer 2101 (~$200). This frees up 15–20 hp by improving airflow. Adds about 25 lbs weight savings too.

Carburetor

The stock 1967 Camaro 327 used a 600 CFM or 650 CFM carburetor. A Holley 0-80496S 650 CFM with vacuum secondaries (~$400) provides better fuel atomization and supports the cam and intake. Rebuild yours or buy new – budget $350–$400. Combine with intake for a total of ~$600. That leaves you $115 under $3,500.

Ignition System

Add an HEI distributor from Pertronix D1062 (~$160). It delivers a hotter spark for better combustion, adding 3–5 hp and improving idle quality. This fits in the contingency money.

With this combo – quality rebuild, better cam, aluminum intake, 650 CFM carb, and HEI – you’ll see 50+ horsepower over a tired stock engine. Many 327 builds hit 310–330 hp with these parts.

Optional Exhaust Upgrade

If you still have money (the $715 leftover covers the intake and carb), use the remaining $115 for a set of JEGS shorty headers ($145). You’re only $30 over budget but it adds another 10–15 hp. Skip headers if you must stay at $3,500; the intake/cam/carb combo will still net 50 hp.

Engine Reassembly Tips for a First-Time Builder

This project assumes you can handle mechanical assembly. Here’s production-ready advice.

Prepare the Block

After machine work, wash the block with hot water and dish soap to remove metal shavings. Blow out all oil galleries with compressed air. Install brass freeze plugs and a new cam bearing set (done by machine shop).

Install Crankshaft

Lubricate main bearings with assembly lube. Torque main cap bolts in three stages to spec (65 ft-lbs for factory 2-bolt mains). Check end-play (0.002–0.006″); use a dial indicator.

Piston and Rod Assembly

Number each rod and piston before removal. New pistons should be mounted with the notch facing forward. Install rings with gaps staggered 120° apart. Use a ring compressor and hammer handle to tap pistons into the bore. Torque rod bolts to spec (typically 45 ft-lbs for stock bolts).

Camshaft and Timing Chain

Coat cam lobes and lifters with moly paste. Install cam gently to avoid damaging bearings. Set timing chain so both sprocket dots align at 12 o’clock (cylinder #1 at TDC).

Cylinder Heads

Use new head bolts (ARP or GM). Apply thread sealer to bolts that enter water jackets. Torque in sequence: 65 ft-lbs final for factory bolts. Re-check after running the engine and cooling.

Valvetrain Adjustment

For hydraulic flat tappet cam, adjust rocker arms to zero lash, then tighten ½ turn to preload. Cycle engine by hand to ensure no binding.

Break-In Procedure: The Critical First 20 Minutes

This is where many rebuilds fail. Follow exactly.

  • Prime the oil system: Use a drill-driven oil pump primer shaft. Spin until oil appears at every rocker arm. Do this before starting.
  • Fill coolant and oil (SAE 30 non-detergent break-in oil).
  • Start engine and immediately bring RPM to 2,000–2,500 and hold for 20 minutes. Do not let it idle – the cam needs maximum oil splash to break in the lobes.
  • Vary RPM slightly (2,000–3,000) during the 20 minutes, but never let it idle. Watch for leaks, overheating, odd noises.
  • After break-in, drain break-in oil (contains metal particles) and replace with quality 10W-30 or 10W-40. Install new filter.

Neglecting this procedure can wipe a cam lobe in minutes.

Final Tuning and Dyno Expectations

After break-in, set base timing to 12° BTDC. Adjust carburetor idle mixture screws for highest vacuum (about 18–20 inHg). Check fuel pressure (5–7 psi recommended).

Your rebuilt 327 with the parts above should make 290–330 horsepower at the flywheel – about 50–70 more than a stock 210-hp version. The 50-hp gain is conservative; many builders see 60 hp. The $3,500 budget is realistic if you do the labor and shop sales.

“A well-planned small-block Chevy rebuild is the best bang for the buck in classic car performance. You can build a 300+ hp street engine for the price of a low-end used car.” – David Vizard, engine builder and author

Where to Save and Where to Splurge

To stay under $3,500, cut where necessary:

  • Save: Reuse stock rocker arms, pushrods, and intake if you don’t need extra hp. But then you won’t reach 50 hp. Better to find a used intake manifold on eBay for $75.
  • Splurge: New valves, high-quality gaskets (Fel-Pro), and a good oil pump. Cheap parts ruin reliability.
  • Machine work: Never skip a magnetic inspection or line hone. A cracked block or failed bearing will cost more later.

If you’re tight on cash, buy a rebuild kit (pistons, rings, bearings, gaskets, cam) for $1,000–$1,200 and save $300 versus individual parts. Examples: Summit Racing kit SUM-1521B includes everything except machine work.

Conclusion

Rebuilding the engine in your 1967 Chevy Camaro for $3,500 is an achievable project that returns a reliable, 300+ horsepower powerplant. By focusing your budget on cylinder head machine work, a quality camshaft, a better intake, and a responsive carburetor, you gain the extra 50 horsepower without breaking the bank. The satisfaction of firing up an engine you built yourself is unmatched – and your Camaro will earn its keep on the street for thousands more miles.