Owning a Lehman Marine engine from the 1965-1969 era means preserving a piece of maritime history. This Marinizing Parts Manual is your definitive guide to maintaining, repairing, and sourcing the correct components for your vessel’s powerplant—ensuring reliability and longevity for years to come. Designed for Early Models with engine codes E, F, G, H, I, this manual is an indispensable resource for: Accurate part identification – Locate genuine Lehman Marine components with precision Marinization specifics – Understand raw water cooling, gear reduction (2:1, 2.5:1), and marine gearbox configurations Maintenance schedules – Follow expert guidance on oil changes (SAE 30W), impeller replacements, and fuel filter servicing Key technical details at your fingertips: Base engine compatibility: Ford "X" series inline-6 variants (90-150 HP) Dimensions: 30-36" L × 20-24" W × 28-32" H (engine only) Weight: 450-650 lbs (engine with gearbox) Available as an instant PDF download, this manual eliminates guesswork and empowers you with factory-accurate information. Whether you're a marine mechanic or a hands-on owner, invest in the reference that keeps your Lehman Marine engine performing as originally engineered.