A father-and-son build · Sugar Creek, Missouri · researched Oct 2026
Topper's high-school truck, rebuilt over the next decade to become Walter's. Every system researched and fact-checked: what to buy, what it costs, where to get it, and what it touches.
The full list of checks and the compatibility matrix · Waking up the truck
Keep it simple
460 ci, carburetor, three-speed. Screwdriver-serviceable and the cheapest credible build, but it turns ~2,700–3,000 rpm at 70 and tops out near 450 hp.
All in$40–51k
≈2,670–2,965 rpm at 70 mph
Recommended
489 ci stroker, self-tuning EFI, overdrive automatic with lockup, hydroboost four-wheel discs. The only recipe that meets every goal at once, and the safest for a teen driver.
All in$58–77k
≈2,415 rpm at 70 mph
If you want a clutch
Same 489 and 9-inch as the recommended build, with a carb and a clutch pedal. The best-feeling truck, but not cheaper, and the hardest fit (tunnel, pedal, hydraulics).
All in$57–75k
≈2,030 rpm at 70 mph
All-in = researched parts and services + 10–15% misc + 2–4% freight + 7.6–8.1% Missouri sales tax, before body, paint and interior (the mid body tier adds roughly $8–16k). These are sums of researched estimates, not quotes. Power figures are estimates, not dyno results. One revision to your original brief: the research lowers static compression from 10.3–10.5:1 to 9.2–9.3:1, because a truck-friendly cam on 93 octane can't support more. The stroker's extra displacement makes up the power.
Each row opens the full write-up: the pick first, then options with prices and links, gotchas, and what to check on the truck.
| System | The pick | Cost in the recommended build |
|---|---|---|
| Plan | ||
| The recommended build | Recipe 2, the daily restomod, plus the compatibility matrix and conflict register | |
| Gearing & highway rpm | 4L80E + 3.70 on a 275/50R17 ≈ 2,415 rpm at 70 | |
| Budget | Line-item costs for every system, all three recipes | |
| The decade roadmap | Six phases, 2026 → 2036, Walter-ready by 2041 | |
| Engine | ||
| Block & bottom end | 489 stroker (Scat 4340 kit) if the block passes sonic + Magnaflux | $4.5–6.5k |
| Heads & compression | Edelbrock Performer RPM 60455 oval-port, 9.2–9.3:1 | $3.3–3.9k |
| Camshaft | COMP Magnum 232 on 110 LSA, or a custom 234/240 | $2.0–2.5k |
| Intake, carb/EFI & fuel | Air-Gap 7561 + Holley Terminator X Max, in-tank pump | $4.4–4.7k |
| Ignition & charging | HyperSpark distributor under EFI timing, Odyssey battery | $1.7–2.1k |
| Cooling & belts | Cold Case 21" dual-fan + Vintage Air Front Runner serpentine | $4.0–4.5k |
| Headers & exhaust | Hedman mid-length headers, 3" stainless duals with an X-pipe | $2.0–5.5k |
| Drivetrain | ||
| TH400 rebuild | Recipe 1 only: DIY rebuild, 34-element sprag, 2,200–2,500 converter | $1.5–2.5k (Recipe 1) |
| 4L80E swap | Gearstar Level 3, Terminator X Max shifting, lockup converter | $8.8–10k |
| T56 Magnum swap | Recipe 3 only: Magnum 2.66/.80/.63 via American Powertrain kit | $8.0–8.6k (Recipe 3) |
| Rear axle & driveshaft | Currie 9-inch, 31-spline, TwinTrac, 3.70 | $3.2–3.4k |
| Wheels & tires | 17" Torq Thrust II, 245/50 front & 275/50R17 rear | $2.3–2.7k |
| Chassis | ||
| Suspension & stance | 2/4 drop: brake-kit spindles, 4" leaf pack, Bilsteins | $2.3–3.2k |
| Brakes | Wilwood ProSpindle four-wheel disc + hydroboost | $4.2–5.5k |
| Steering | Borgeson 800132 box, 12.7:1 | $1.3–1.8k |
| Cab & body | ||
| Wiring & gauges | American Autowire harness + Dakota Digital RTX gauges | $3.9–4.0k |
| A/C & heat | Vintage Air SureFit evaporator on the Front Runner compressor | $1.8–2.3k |
| Body, interior & safety | Cab-on-frame rust repair, 3-point belts, headrest seats | $7.2–13k (mid tier) |
| Around KC | ||
| Shops & resources | Machine, trans, driveshaft, exhaust and alignment shops around KC | |
| Title, inspection & insurance | Missouri title, inspection, mods and insurance | |
| Shop notes | ||
| Waking up the truck | Wake it up safely and find out what you have | |
| Assembly, break-in & first start | Assembly, ZDDP oil, priming and first start | |
| Tuning & drivability | Tuning plan, idle and lope reality, 93-octane logistics | |
| Specs, torque & fluids | Torque, clearance and fluid reference | |
| Safe for a 16-year-old | Making 500 hp safe for a 16-year-old | |
Researched by a fleet of 50 Claude agents on Oct 12, 2026: one researcher per system, an adversarial fact-checker per section, cross-system integration, and a reconciliation pass. Prices are dated snapshots; many big retailers block automated checks, so confirm at checkout.
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