BluePrint Engines Small Block Ford 342 Stroker crate engine is a popular turnkey performance option for classic Ford builds (especially Mustangs, hot rods, and restomods). Here’s a clear breakdown of what you’re looking at:
BluePrint Engines Small Block Ford 342 Stroker Crate Engine
- Carbureted Base Dressed Longblock with Aluminum Heads, Rear Sump Pan and Roller Cam
- HP And Torque: 415 HP / 415 FT LBS
- Compression Ratio: 10.0:1
- Aluminum Heads
- Hydraulic Roller Cam
- Cast Steel Crank
- Forged Pistons
BLOCK:
New standard bore stroker style block
Square and parallel decked
Align honed main bearing bore
Cylinders honed on computer controlled machine to within .0002 straightness and roundness
Cylinders are sonic tested for thickness
2-Bolt Main
1-Piece Rear Main Seal
Mech fuel pump provision: Yes
ROTATING ASSEMBLY:
New BluePrint Cast steel crankshaft
3.400″ Stroke
Forged I-beam 5.400″ connecting rods
Forged pistons
28oz External balance
CYLINDER HEADS:
BluePrint Aluminum Cylinder Heads -HP9008
60cc chamber
2.02″ intake/1.60″ exhaust valves
190cc intake/65cc exhaust runners
CAM SPECS:
Cam Type: Roller
.543 Intake .554 Exhaust
218 Intake / 226 Exhaust duration
@ .050 – 112 degree lobe separation
IGNITION TIMING:
34 Degrees Total at 3500 RPM
ALSO INCLUDES:
Dual plane, satin aluminum intake manifold
600cfm carburetor
Distributor
Valve covers
Painted rear sump oil oil pan
Dyno test results shipped with engine
What “342 Stroker” Means
It’s based on the classic Ford 302 (5.0L) block but:
- Uses a longer stroke crank (3.400″)
- Increases displacement → more torque
- Keeps compact size/weight (fits where a 302 fits)
This is why people choose it: big power without needing a big-block swap.
Performance Character of BluePrint Engines Small Block Ford 342 Stroker Crate Engine
- Strong mid-range torque (great for street driving)
- Pulls hard up to ~6,000–6,500 RPM
- Works well with:
- 5-speed manual swaps
- Classic muscle cars
- Lightweight hot rods
