Best powersports cylinder heads according to redditors

We found 4 Reddit comments discussing the best powersports cylinder heads. We ranked the 4 resulting products by number of redditors who mentioned them. Here are the top 20.

1. Glixal ATMT1-023 High Performance GY6 61mm 170cc Big Bore Rebuild Cylinder Kit For 152QMI 157QMJ Engine Chinese Scooter Moped ATV

1 mention
Glixal ATMT1-023 High Performance GY6 61mm 170cc Big Bore Rebuild Cylinder Kit For 152QMI 157QMJ Engine Chinese Scooter Moped ATV
1.Please Note: 61mm Bore Cylinder May Require to Machine the Crankcase on Some Engine Model2.This Cylinder fits the 76mm Bolt Pattern Engine, It will not work on the 80mm Bolt Pattern3.Outer Diameter of Piston Pin: 15mm4.Inner Diameter: 61mm and Outer Diameter: 65mm5.Include Cylinder,Piston,Piston R...
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2. Cylinder Piston Assembly Kit for Honda CRF70 ATC70 XR70 CT70S65 TRX70

1 mention
Cylinder Piston Assembly Kit for Honda CRF70 ATC70 XR70 CT70S65 TRX70
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3. Cylinder Works 41001-K01 Big Bore Cylinder Kit

1 mention
Cylinder Works 41001-K01 Big Bore Cylinder Kit
Spec: Description: Big Bore Cylinder Kit, Compression Ratio: 11.3:1, Cylinder Diameter: 94mm, Cylinder Kit Type: Big Bore, Displacement: 434cc, Kit Includes: Cylinder, Piston Kit, and Top-End Gasket Kit, Notes: Uses Vertex #23533Replaces OEM Numbers: Western Powersports: 422-41001K, Lemans: 0931-013...
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4. Athena Big Bore Cylinder Kit (70cc Bolt On) - 47.66mm Bore 070200

1 mention
Athena Big Bore Cylinder Kit (70cc Bolt On) - 47.66mm Bore 070200
Kits include aluminum cylinder with nickel-carbide coating designed with larger water jacketsIncludes Forged piston, rings, clips and pinAthena top-end gasket set includes required seals and hardwareEasy-to-follow step-by-step installation instructionsMost are bolt-on; no machining required except w...
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Top Reddit comments about Powersports Cylinder Heads:

u/memeselfi · 2 pointsr/scooters

I slapped this on a zuma. https://www.amazon.com/Athena-Bore-Cylinder-70cc-Bolt/dp/B000UKJG7I . Worked great. Just have to rejet and adjust the needle on original carb.

u/KamikazeKebab · 2 pointsr/motorcycles

Yeah, it's not the highest mileage drz I've seen but it's definitely getting up there! I rebuilt the top end at 27,000 km's (17,000 miles) and went with the Cylinder Works kit. A 434 with E cams and an FCR carb is probably the ultimate drz.

u/Schwarze_Dreizehn · 1 pointr/Fixxit

Not the head, just the cylinder itself. I bought this kit from amazon. I just got the piston back in though, and I had to trim one of the rings and replace one of the more minor ones with one from the original piston as the one from the kit got caught and bent out of shape. I'm going to rate this kit like 2.5 stars if it runs.

u/bikeram · 1 pointr/scooters

I agree, this is the route I wanted to go but I didn't want to mismatch any parts. Is this the big bore kit you're talking about? Do I need a new head?

Will any A9 cam work? I couldn't find a difference between a 2-stroke and 4-stroke.

My scooter came with the upgraded coil, and I saw a video that explained the advanced CDI's advance timing from 0-11k rpms while the OEM retards it slightly below 3k rpms which makes it easy to start. Is it better to stay with OEM?