I used Wossner(RK Tek) pistons in my machine & did so because it was the cheapest/quickest fix to address the excessive piston to cylinder wall clearance that plagues most of the 800 CFI2 engines. Capable of Handling well over 1000 HP with just a Wrist Pin Upgrade. Wiseco Pistons (Spc) Overbore Kit Pistons and Connecting Rods A piston and a connecting rod have a close partnership with each other. Wiseco arent even in the same league..... there measurements for standard off the shelf pistons vary way too much and dont even get me started on there custom pistons!!! The piston skirt is coated and thus ensures lower friction. Wiseco’s new K635 series piston is the only forged piston utilizing special form tooling for the correctly shaped dome and bowl design. It runs Wiseco pistons & probably has the highest volume of kits out on the snow with nothing but good results. Other features such as dome brushing, ArmorGlide skirt coatings, gas ports, and advanced ring packages will be found on many of these pistons. From the crank to the piston kit, and even an hour meter to track maintenance, everything is included in one box. You did not get any such info from Wiseco, their tolerances are liosted right on their web site, and on the paperwork that comes with their pistons. The KDX250 uses a modified KX250 engine. I'd heard from a couple people that a Wiseco improves the bottom end and middle just a bit, at the sacrifice of the top end. The pistons he made at that time were destined for use in big bore marine engines, and like so many successful companies that began in people’s garages, word of what he was doing spread and soon he was making pistons for friends and so business began to grow. When I first built my Shovelhead I messed up and made the bore clearance too tight and had some serious issues. It connects the piston to the crankshaft and is responsible for transferring electric power from the piston to the crankshaft and sending it to the transmission. Click on Over size needed before placing Cart. In defence of Wiseco's, a few motors I look after for a team here running an S3000 modified F1 motor, we had Wiseco pistons custom made, top pinned etc from the Wiseco factory, these have run really well making very good HP, after a strip down they look good. Find helpful customer reviews and review ratings for Wiseco 9300Xx Piston Rings For Wiseco Pistons Only at Amazon.com. On an STi head (57-58cc) the compression ratio would be the same as the CPs. Yea I have read up on on both pistons… They do a good job in the smal engine market but have never really gotten a good grip on the automotive performance world - seems like they change direction every three years. The Wiseco Piston / K1 H-Beam Piston and Rod Combo is the Strongest Shelf Stocking Combo available. Speed Pro H345DCP 350 Small Block Chevy SBC Flat Top Pistons Coated Piston 5.7" (STD 4.00" Bore Diameter) Speed Pro H345DCP 350 Small Block Chevy SBC Flat Top Pistons Coated Piston 5.7" (.080" or 4.080" Bore). Wiseco Sport Compact pistons are made from dedicated forgings produced in-house to give you a lightweight piston with superior strength and optimal design. BMW forged pistons by WISECO. ’99-’06 Twin Cam® Stock 4” Stroke Pistons: 4-1/8” bore yields 107” displacement with stock ‘99-’06 (88”) 4” stroke crankshaft, retains stock cylinder height. Once uncorked and properly tuned, it will run with any 250MXer of it's day. Wiseco pistons do in fact run tighter tolerances than cast. Discussion Starter • #1 • Dec 29, 2011. Barry_R wrote:Wiseco makes a perfectly good part.Since the old TRW Clarkwood plant closed they've been the only piston manufacturer that forges their own blanks in house. They do … I don't know if this is still appropriate, but hopefully, someone with specific knowledge can chime in. The MotoSport.com Wiseco Pro-Lite Piston Kit - 2-Stroke includes one of each of the following components with the following attributes: The Wiseco Piston Kit is not just a basic piston replacement, it is a performance piston kit that is more durable than O.E.M. 5 Stars, 1 product ... We’ll take a look and remove the review if it doesn’t follow our guidelines. Performance, Pistons have wear and friction reducing skirt coating. While I can't speak to the 700 specifically, in the past, I've typically set up Wiseco pistons of similar bore size with .001"-.0015" greater clearance than Wiseco specifies for my sea-level applications. The domes in the high compression models are offset to work in stock EV combustion chambers without modification. All Wiseco pistons are forged from high silicon, low expansion aluminum alloy. SPI pistons vs. Wiseco vs. Stock? I like both pistons. Typically vertex cost more than wiseco … Interesting. 5.0 average based on 1 product rating. Featuring valve pocket designs that allow maximum flow around valve, also allowing oversized valves and high lift cams to be utilized and pis Find Wiseco K474M965 Wiseco Professional Series Pistons and get Free Shipping on Orders Over $99 at Summit Racing! Read honest and unbiased product reviews from our users. Mitsubishi 7-Bolt 4G63 1400HD E85 Series Pistons by Wiseco Own a 7-Bolt 4G63 engine and plan on building a motor? All Wiseco Sport Compact kits come with 1mm x 1.2mm x 2.8mm XX ring sets. Wiseco 80” Evolution® Big Twin Pistons $ 0.00. CP ring lands are thicker than Wiseco ring lands. These forged 4032 aluminum piston kits are complete with chromium alloy steel piston pins and Spirolox. Wiseco Domestic Automotive Forged Pistons feature dedicated forgings, specially designed valve pockets, unique dome and crown designs, optimized skirt profiles and precision machined ring grooves. Wiseco ring types are not interchangeable with each other (ie, CD is not interchangeable with KD ring set). Box 633 Sheboygan, WI 53082-0633 1-855-HPD-RACE Wiseco pistons come with 1 piston, ring set, wrist pin, and circlips. Available in stock 8.5:1 flat-top or 10:1 high dome compression. They're forged from either 2168 or 4032 aluminum alloy for maximum strength, and then precision CNC-machined to their intricate final configurations under close tolerances. Details about Wiseco PTS540A3 Pro Tru Pistons AMC 401 V8 -27cc Reverse Dish .30 Over Bore. This item Wiseco PTS503A6 Pro Tru Pistons Small Block Chevy 350 2V Flat Top .60 Over Bore. Wiseco is proven to make some of the best pistons on the market! 1,350 Posts . wiseco pistons - ls3/l99 - 4.070" bore - 3.622".927" - 6.125" rod -3.2cc vol - flat top - k398x7 JavaScript seems to be disabled in your browser. Posted by xcrspx on Thursday, April 27, 2006 2:18 PM Just curious if people have had any good or bad luck with SPI pistons? Wiseco® began the manufacture of pistons 70 years ago when founder Clyde Wiseman started making them in his garage. The connecting rod is a important link within of a combustion engine. 1 product rating. World renowned for their work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines in such venues as Formula 1, Indy Racing League (IRL), NHRA Pro Stock, Moto GP, AMA Superbike, AMA Motocross and Supercross to design and manufacture the highest technology pistons available. Horsepower Direct P.O. Wiseco Professional Series pistons are designed to take the hard-driving abuse from your performance engine. Find Wiseco Pro Tru Street Pistons and get Free Shipping on Orders Over $99 at Summit Racing! This offers a superior strength, weight reduction, improved heat transfer and longer life. For the best experience on … 5. 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