Cam timing, valve springs, pushrod length, piston-to-valve clearance, degreeing, head flow and head milling calculators.
Calculators in this category
Camshaft Selector — What Cam Do I Need? — Enter your engine, compression, transmission and goal. Get a recommended duration at 0.050 inch, LSA and lift, with matching real cams.
Advanced Cam Timing Calculator — Full cam analysis: valve events, overlap, recommended LSA, dynamic compression ratio and a rocker lift table. Works from the numbers on the cam card.
Cam Degreeing Calculator — Step-by-step cam degreeing guide with intake centerline verification, advance/retard calculation, and dial indicator math.
Valvetrain RPM Builder — Match cam, rockers, springs, and target RPM as a complete system. Valve float estimation, RPM safety graph, and cascade warnings.
Valve Spring Calculator — Validate valve spring specs for your cam profile. Seat pressure, open pressure, coil bind clearance, and spring rate analysis.
Valve Shim Calculator — Calculate replacement shim sizes for shim-over-bucket and shim-under-bucket valvetrains. Nearest available shim lookup.
Pushrod Length Calculator — Correct pushrod length after head milling, cam swaps, or rocker changes. Stock lengths for SBC, BBC, LS, SBF, and Hemi.
Piston-to-Valve Clearance Calculator — Kinematic P2V simulation across the overlap region. Engine platform presets, cam advance slider, and interference warnings.
Cylinder Head Flow / CFM to HP Calculator — Convert flow bench CFM to horsepower potential. Flow coefficient, intake/exhaust ratio, port velocity, and comparison against popular heads.
Head Milling Calculator — Calculate chamber volume change, compression ratio shift, and intake manifold alignment when milling cylinder heads.