Awesome
By
Steven C.
on
Verified Purchaser
Awesome upgrade from 103. Very high quality.
Fits:
$1211.36 – $1394.96
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S&S 4" big bore cylinder and piston kit boosts Twin Cam 96/103 Harley-Davidson big twin engines to 110" displacement. This kit does not require any machining, rebalancing or engine removal, and includes just about everything you'll need to complete the installation. These are biggest cylinder bore that can be installed in a stock crankcase without machining!
Product Note:
Specification | Details |
---|---|
Bore | 4 in. |
Color | Varies (make selection above) |
Compression Ratio | 10.5:1 |
Country of Origin | USA |
Displacement | 110 CI |
Engine Type | Twin Cam 96 / Twin Cam 103 |
Finish | Powder Coated |
Material | Aluminum |
Piston Type | Forged |
Stroke | 4-3/8 in. |
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
By
Steven C.
on
Verified Purchaser
Awesome upgrade from 103. Very high quality.
By
Daniel S.
on
Verified Purchaser
My hp raised from 84 to 97 and torque from 100fp to 123. Huge increases for a motorcycle.
By
Anthony H.
on
Verified Purchaser
Solved my issue perfectly.
How many stars would you give this product? Write a review.
By Jway
The listing says powder coated but the picture shows naked steel.
Both the black and silver cylinders have a powder coated finish on their fins, specifically the horizontal surfaces. The outer-facing edges of the fins are finish machined after powder coating to produce the silver contrasting edges you see on both, the black, and silver color options.
By Zee girl HD
9.7,1 stock comp on a 103 ci this kit say 10.5 that alone will it jump hp up ? I don't the extra 7 cubic inch would do anything?
Yeah, higher compression and bigger bore is going to result in a noticeable jump in power. Especially when it the bike is tuned properly to add the fuel needed it should make some good numbers.
By al
S&S does recommend that this kit not be used if you're planning on having higher than 10:1 compression ratio for Trike or Tri Glide models. They also mention that it is not compatible with the S&S Super Stock 79cc heads.
By Dave
This kit would not have the cylinder heads included, only the cylinders. You can use your stock heads with this kit.
By Anon.
Yes, you are able to use the stock cylinder heads on the cylinders in this kit.
By Anon.
Yes, you can use stock heads with this kit.
By Ray S.
No, there's no requirement to use a different compensator sprocket in order to fit this kit to any of the machines listed in our fit guide.
Have a question? Please ask our experts and customers who own this product.