World's Largest Aftermarket Motorcycle Parts and Accessories Superstore!


Shop Discounted Brands!
Shop Discounted Brands!

88″ Panhead Long Block Engine

Select your motorcycle to guarantee fitment! Select A Motorcycle

Product may vary from photo(s).

Everyday Low Price: $8,078.99

Gold Club Price: What's This? The Gold Club is our premier membership program. For most items members receive 10% off every day, plus exclusive sales and benefits just for members. More Info $8,078.99

J&P Part: 433-440

– Order in the next to ship today.


88″ Panhead Long Block Engine

• This complete 88-inch Panhead long block engine features an alternator in the left hand case and a generator in the right hand case

• It is assembled with S&S crankcase, Sifton oil pump and breather assembly, S&S 4-1/4″ stroke flywheel, Timken main bearing, stock FLH cam with matched pinion gear and Torrington full compliment needle bearings

• You also get a cast finish ribbed cam cover, automatic advance distributor and chrome lifter block fitted with hydraulic tappets and pushrods

• Cylinders are S&S 3-5/8″ type fitted with 7.75:1 compression ratio cast pistons and rings

• The top end also features STD dual plug heads with late type intake ports, 3-bolt exhaust flanges, rocker arm assemblies, no-lead valves, chrome pan covers, polished thick D-rings, chrome pushrod covers and a chrome rocker box feed line

• The entire unit is pre-run and tested for proper oil pump pressure

• Order the intake maniford (Shovel band type) and carburetor separately

• Requires a 1970 or later style primary case

• Use with 4 or 5-speed electric or kick start transmission

Important Product Notes

Product Specs

Alternator or Generator: Alternator

Assembly: Comes Assembled

Compression Ratio: 7.75:1

Cylinder Material: Cast

Design: Panhead

Displacement Size CI: 88″

Finish: Chrome/Polished

Material: Cast

Piston Material: Cast

Single or Dual Plugs: Dual Plugs

Sold in Units: Each

Stroke: 4-1/4″


Select your motorcycle to guarantee fitment! Select A Motorcycle

Click (+) to view all compatible models

Harley-Davidson® Models

Duo Glide FL : 1962–1964
Duo Glide FLF : 1962–1964
Duo Glide FLH : 1955–1964
Duo Glide FLHF : 1958–1964
E : 1948
EL : 1948
Electra Glide Fat Bob FLHFB : 1965
Electra Glide FLB : 1965
Electra Glide FLFB : 1965
Electra Glide FLH : 1965
Electra Glide FLHB : 1965
Electra Glide FLHF : 1965
ES : 1948
FL : 1948–1961
FLE : 1953–1956
FLEF : 1953–1956
FLF : 1952–1961
FP : 1949
FS : 1948–1950
Hydra Glide FLHF : 1955–1957
Hydra Glide FLS : 1951–1952
Panhead FL : 1948–1950

Shipping Note

An additional shipping charge of $125.00 will be applied for shipments within the contiguous U.S. Additional oversized shipping charges will be applied for expedited shipments within the contiguous U.S. Shipping charges outside the contiguous U.S. are calculated by weight and dimension during checkout.

Select Your Motorcycle

Live Help

Get Help From Our Industry Experts

Call Us 24/7 1-800-318-4823

Help / FAQs