BMW M Series
G80 M3 | G82 M4 | G87 M2
The BMW M Series S58 engine is the high performance version of the legendary B58 which is well known for delivering huge power gains with some basic modifications. BMW has provided the S58 with a much more performance orientated fuel system than the B58, giving scope for serious power gains in an already high performance engine. Commonly found in the newest generation M series.
BMW S58 Compatible Engines
Kelford CamsÂ
- F97 X3 M - 2019+Â
- G20 Alpina B3 2019–2022Â
- G20 Alpina B3 - 2023+
- F97 X3 M Competition - 2019+
- F98 X4 M - 2019+
- F98 X4 M Competition - 2019+
BMW M SERIES
Unlock Serious S58Â RPM
288/268 | Stage 1 BMW S58
Stage 1 for engines with bolt on intake, exhaust and turbo upgrades. For engines producing around 600-850hp running a 60-68mm turbo. Requires Valve Spring Upgrade
292/280 | Stage 2 BMW S58
Stage 2 for professionally built BMW S58 engines that can deliver 800hp to 1400hp with 66-75mm turbo sizing and aftermarket intake plenums. The cams enable full use of Valvetronic and
298/292 | Stage 3 BMW S58
Stage 3 Drag Racing Cams: Designed for professionally built S58 engines producing 1400hp+. Turbo sizing 76mm+ on high boost. Ethanol blend or methanol.
BMW B58/S58 Valve Springs
designed for S58 & B58 performance engines. Specifically engineered to match our Stage 1, Stage 2 and Stage 3 Camshafts
KVS58-BTX | B58 / S58 Extreme
For high boost, high horsepower builds. Engines making over 1000HP. Specifically designed for Kelford Stage 2 & Stage 3
Experts in Design & Engineering
Kelford Cams has developed a camshaft and valve spring solution for the BMW S58 engine by leveraging our vast expertise with the B58, which we’ve acquired over the past two years.
Our products reflect premium quality standards that result from our in-depth research, design and manufacturing processes from the highest grade materials.
Valve Spring Fitment Guide
Download the S58 Engine Valve Spring Fitment Guide to clear up any confusion about using the B58B30 spring kit with the S58B30 head. Despite some claims suggesting that this is unsafe due to a different retainer being required for higher lift camshafts, our guide confirms that this is incorrect. The guide is available to download now and provides clear guidance on this matter.
S58 Camshaft Manufacturing
FASTEST BMW M240i
8.13 @ 170mph
The Shop CT and their BMW M240i running B58 Kelford Cams 258-B Precision Turbo Next GEN 7480 Sportsman turbocharger combined with a Visconti Tuning 3.0 Stage 2 engine, KLM turbo kit and Pure Drivetrain Solutions Stage 3 transmissions. Tuned by Mr. Mikey Botti, driven by @boosted_jahaziel. Congratulations to the team on this amazing achievement.
S58 World Record: 8.49 @ 164.29 MPH
@rkautowerks Pushing 1179awhp and 45 PSI with: RK Stage 3 Engine RK g42-1200 turbo kit RK Billet intake manifold RK Surge tank Frankenstein Engineering CNC Heads Kelford 358-B camshafts Tuned by @stimikey and driven by @boosted_jahaziel
