BMW Internal Engine Parts for BMW A90 MKV Supra B58 3.0L

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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Kelford Cams - Corporate Logo
T#:25938619
Part#: KEL-HPVSK-B58
Ships in 4 Business Days
$ 699.99 USD
Free Shipping on orders $49 and up
Kelford's performance valve spring and titanium retainer kit is designed to work with the B58B30 straight-6 engine. Made using high-performance PACALOY™, this kit is sure to offer outstanding performance. This kit is specifically engineered to work well with their Stage 1, Stage 2, and Stage 3 camshafts to provide exceptional quality, reliability, and performance. 90lb seat pressure at 36.5 mm installed height; 193lb at 11.0 mm valve lift Spring coil bind height at 23.6 mm
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CP Carrillo - Corporate Logo
T#:22591958
Part#: CAR-CRS-B58-WMC
Ships on Oct 26, 2026
$ 2,059.99 USD
Free Shipping on orders $49 and up

Unleash Performance with Carrillo Connecting Rods

Carrillo connecting rods enjoy a well-deserved reputation among pro racing and street performance enthusiasts. The reason is simple: Carrillo Industries consistently delivers a top-tier product that racers worldwide depend on for their victories.

At Carrillo Industries, a deep commitment to quality and excellence is at the heart of everything they do. Crafting a Carrillo rod transcends mere production; it's about the pursuit of victory. Carrillo rods have demonstrated their performance prowess in both street and racing applications, especially in B58 engines, making them a trusted choice for performance aficionados.

Key Features:

  • Special Chrome-Moly based alloy Forged Rods
  • Lightweight design for reduced mass compared to stock
  • Proven strength in racing
  • Exceptional quality control
  • Precise tolerances and balancing
  • Includes high-quality Non-stretch WMC Rod Bolts

Tech Notes:

WMC Bolts are the standard hardware included and serve as excellent fasteners. For applications demanding extreme output and all-out racing, the CARR bolt option excels in maintaining maximum RPMs and HP levels.

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