What material are these Carrillo bolts made from?

These bolts are forged from Carrillo's proprietary WMC (Weld-Metal-Controlled) alloy. This material is chosen for its exceptional strength and resistance to fatigue, making it well-suited for high-stress engine applications.

How many bolts are included in this set?

This set includes eight (8) Pro-H 3/8 WMC bolts. This quantity is typically required for a complete V8 engine application.

Are these bolts compatible with all connecting rods?

These bolts are designed to be a direct fit for the specified Ferrari models and are intended for use with compatible connecting rods. It's always recommended to ensure compatibility with your specific connecting rod choice for optimal performance and safety.

Carrillo Pro-H 3/8 WMC Bolts Set of 8 FE-328>65394H-8

Name: Carrillo Ferrari 308/328/330/348/Boxer/Testa Pro-H 3/8 WMC Bolts - Set of 8
Brand: Carrillo
Price: 2700.00 USD
Availability: InStock

Carrillo Ferrari 308/328/330/348/Boxer/Testa Pro-H 3/8 WMC Bolts - Set of 8

$2700.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Carrillo Pro-H 3/8 WMC Bolts - Set of 8 for select Ferrari models. Essential for high-performance engine builds.

Key Features

Fits select Ferrari 308, 328, 348, Boxer, and Testa models.
Set includes 8 Pro-H 3/8 WMC bolts.
Forged from proprietary Carrillo WMC (Weld-Metal-Controlled) alloy for strength and fatigue resistance.
Designed as a direct replacement for factory connecting rod bolts.
Suitable for high-performance engine builds and restorations.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in a classic Ferrari like a 308, 328, 348, or even a Boxer or Testa, using the right hardware is critical for reliability and performance. These Pro-H 3/8 WMC bolts from Carrillo are specifically made for these high-revving V8 engines, ensuring your connecting rods stay securely in place under demanding conditions.

Carrillo is well-known for making strong engine components, and these bolts are no exception. They're forged from a proprietary WMC (Weld-Metal-Controlled) alloy, which gives them a solid combination of strength and fatigue resistance. This material is chosen because it can handle the immense pressures and stresses that occur inside a performance Ferrari engine, especially when you're pushing the limits or restoring a cherished classic. The 3/8 inch size and Pro-H design are engineered to be a direct replacement for the factory bolts, meaning they fit right without modification, simplifying your rebuild process.

This set includes eight bolts, which is what you'll need for a complete V8 engine. When you're investing in a Ferrari engine rebuild, using top-tier hardware like these Carrillo bolts is a smart move to ensure the longevity and performance of your build. They are designed to be used with compatible connecting rods and are a popular choice for both restoration projects and performance upgrades where reliability is paramount.