Drag Pipes For 1948 - 1969 Generator Big Twin Engines With S.T.D. Cylinder Heads In Rigid Or Swingarm Frames

1.-3/4 Drag Pipes For 1948 - 1969 Generator Big Twin Engines With S.T.D. Cylinder Heads In Rigid Or Swingarm Frames
These 40" long Slash Cut drag pipes are specifically intended for use on engines with Panhead or Shovelhead lower ends and STD cylinder heads. Because of the unique 3-bolt exhaust flange incorporated into the S.T.D. heads, they require special exhaust systems. We have taken some of our most popular drag pipe sets for 1948–1969 rigid and swingarm frames and modified them accordingly. They all have slider channels to ease installation, and heat shields for the rear Shotgun and over-the-transmission pipes are highly recommended.

724-40STD Staggered dual drag pipes for rigid and swingarm frames with mechanical brakes

724C40STD Staggered dual drag pipes with over-the-transmission rear pipe for rigid and swingarm frames with mechanical brakes. Will not work on swingarm frames with large FLH battery

724D40STD Shotgun drag pipes for rigid frames with kickstart ONLY

724D1-40STD Shotgun drag pipes for swingarm frames with kick and electric start with swing-out kicker ONLY. Will not fit with large FLH battery. Use a Paughco #718J hanger bracket to mount the rear pipe

718J Hanger bracket for Paughco #724D1-40STD Shotgun rear pipe (bolts to upper shock stud and rear strut on early and late model swingarm frames)


The use of a heat shield on the rear pipe is highly recommended.

421R Fits Paughco #724-40STD rear pipe (not shown)
424CR Fits Paughco #724C40STD rear pipe (not shown)
411BR Fits Paughco #724D40STD rear pipe (not shown)
412D1R Fits Paughco #724D1-40STD rear pipe (not shown)


Special Notes:
1) Drag pipes are not recommended for use on the street.
2) These pipes have less ground clearance
than original equipment and may scrape on hard right hand turns. Do not use
these pipes unless the front end is extended at least 4" longer than stock or serious injury may result.
3) See page 247 for P-clamps and frame rail clamps to install these pipe sets.
4) See pages 349-353 for photos of the heat shields for these pipe sets.
  • Items in stock will be dispatched within 2 business days. Once shipped, you will receive an order confirmation email with a tracking number.

    For items *built to order, shipping times may vary. To inquire about specific shipping times for custom orders or for products you are interested in, please contact us at info@paughco.com or call 1-800-426-2621.

    *Built-to-order items include Frames, Springers, Gas Tanks, Oil Tanks, Trike Products, and any product currently out of stock. If an item you've ordered is on backorder, you will be notified within 2 business days of placing your order.

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