Build it. Swap it. Find your edge.
All the parts. None of the buyer’s remorse.
Explore parts
The numbers settle it.
Select saved cars or engines. Compare the whole curve, not just the peak.
ROOM
Each car uses its own saved body, engine and chassis. Slot 1 is the reference for differences.
Horsepower
HP / RPMTorque
LB-FT / RPMCompare installed components
Calculated with the portable browser model. Small numerical differences and near-tied peak RPM differences are possible. Peaks are sampled at 500 RPM intervals. Game workshop equivalence, tuning, handling scores and track times remain unverified.
Know what fits the family.
A small-block Chevy parts shelf is different from a Ford big-block shelf. Start here.
DESK
Columns are engine families. Rows are components. Click a count to see the matching parts and the blocks in that family. “Any family” parts are included.
Family matching explains what can carry over in a block swap. Bore, stroke, head and other configuration restrictions may still reject a complete build. A matching family is not a guarantee of every physical fit.