The Hastings Piston Ring Set 101.25 refers to a set of piston rings designed to fit engines with a bore size of 101.25  mm

The Hastings Piston Ring Set 101.00 refers to a set of piston rings designed to fit engines with a bore size of 101.00  mm

The Hastings Piston Ring Set 100.75 refers to a set of piston rings designed to fit engines with a bore size of 100.75 mm

The Hastings Piston Ring Set 100.50 refers to a set of piston rings designed to fit engines with a bore size of 100.50 mm

The Hastings Piston Ring Set 100.25 refers to a set of piston rings designed to fit engines with a bore size of 100.25 mm

The Hastings Piston Ring Set 100.00 refers to a set of piston rings designed to fit engines with a bore size of 100.00 mm

​Hard Blok Engine Block Filler 860228 (Tall Fill, 28 lbs) is a cement-based filler designed to reinforce engine blocks, commonly used in drag racing and high-performance applications.

The Hard Blok Engine Block Filler 860212 (Short Fill, 12 lbs) is a high-performance, cement-based filler designed to reinforce engine blocks, commonly used in drag racing and high-performance applications.

The HF Throttle Body Spacer 90mm improves airflow and throttle response by creating space between the intake manifold and throttle body, compatible with LS-style 4-bolt throttle bodies.

The HF Throttle Body Spacer 102mm improves airflow and throttle response by creating space between the intake manifold and throttle body, compatible with LS-style 4-bolt throttle bodies.

The HF Throttle Body for Nissan Y61 (80mm) is a high-performance upgrade designed to improve airflow and throttle response for the Nissan Y61 Patrol.

The HF Throttle Body 90mm in Silver is a high-performance throttle body designed to improve airflow and throttle response for enhanced engine performance.

The HF Throttle Body 90mm in Red is a high-performance throttle body designed to improve airflow and throttle response for enhanced engine performance.

HF Throttle Body 90mm Black Double Knob – High-performance 90mm throttle body with dual knobs and a black anodized finish for improved airflow and control.

The HF Throttle Body 90mm Black is a billet aluminum upgrade with a black anodized finish, designed to improve airflow and throttle response for LS engines.

HF Throttle Body 127mm Silver – High-performance throttle body with a 127mm diameter, anodized silver finish, and aluminum construction for enhanced airflow and throttle response.

HF Throttle Body 127mm Red – High-performance throttle body with a 127mm diameter, anodized red finish, and aluminum construction for enhanced airflow and throttle response.

The HF Throttle Body 127mm Black is a high-performance, CNC-machined aluminum throttle body with a black anodized finish, designed for high-flow applications.