CV3603 – Corvair Carb Heat Box

The Air box for the Corvair engine is designed to provide a Carburetor heat valve and Air duct hose to carburetor adapter in one package.  The filtered air inlet is through the front 2.5 inch opening, the unfiltered carb heat is through the side 2 inch opening.  The 2.5 inch filtered air duct hose attaches to the flange on the air filter box mounted to the lower cowl.

There is a Panther specific air filter and box available separately from SPA.  Contact SPA for more information.

The Carb heat air duct hose is attached to the “heat muff” on the right-hand exhaust system.  The heat muff ends and clamps come with the basic exhaust system.  The shroud and flange must be fabricated by the builder.  Kit includes all hardware needed for assembly.

Hardware is included in this kit.

PLEASE NOTE – if you have a Zenith 601, 650 or 750 and a Cowling Kit from JSWeseman you DO NOT need this.

Corvair Engine Assembly Manual by SPA LLC

The Corvair Step-by-Step Assembly Guide – by SPA LLC.

This is a full size, full color, professionally bound, 220 page manual with step by step instructions on how to assemble your engine.  Requires purchase of the FlyCorvair Conversion Manual (this manual does not replace the Conversion Manual – you must have both), or previous purchase verified.  Please enter your Conversion Manual SN in the comments field when purchasing, or click link to purchase now.



Ultimate Corvair Engine Assembly Guide – Now Available

We have officially released the Corvair Engine Assembly Manual – and folks, it is a must have. Here is what you get: Full size, full color, professionally bound, 242 pages Engine prep Tools needed Sealants needed Step by step, in order instructions Check boxes to keep track of your progress Full description of step-by-step instructions […]

Builder Installing Wings and Building His Engine

John Steere is one of our Panther builders and he recently sent over some photos of his wing rigging and his engine progress from the Corvair College at Mexico, MO last week. Here are some of his photos and what he had to say. You can see all of his progress through his Kit Builder […]

Tom Kodey’s Panther LS Maiden Flight

Tom Kodey celebrated his maiden flight in his Panther LS on Friday March 13th. Tom lives in Port Orange, FL and has his airplanes in a hanger at the Deland Municipal Airport (KDED) – Home of the Deland Sport Aviation Showcase. Tom’s Panther is powered by a Corvair 3.3L from SPA and FlyCorvair’s Engine in […]

Panther Completion – Tom Kodey from Port Orange, FL

Tom Kodey from Port Orange, FL received his certificate today for his Panther LS. Tom has Panther SN 104 and started his Panther building project in late 2018. He built his Panther airframe and Corvair 3.3L powerplant – and is now ready to take to the skies. The Corvair engine Tom built is the stroker […]

Goodbye 2016 and Hello 2017!

HAPPY NEW YEAR! Here is one of our favorite photos of the year. This is a photo of Stephen Pedano’s Panther LS at OSH 2016 Night Air Show. Thank you Ed Hicks, Flyer Magazine. This year has been a wonderful year for SPA. We have grown older, wiser, and more grateful for our customers, […]

Corvair EIB Build at Zenith Open House – This Weekend

We have recently launched our “Engine in a Box” product offering for the Corvair at Oshkosh 2016 and you can come see what it is like to build one first hand at the Zenith Aircraft open house this weekend.  Dan Weseman and William Wynne are headed up there now and will be there assembling an […]

Vote for US!!!

What is it? We received an unsolicited email from our bank, CHASE, which explained a grant program. Normally we wouldn’t have even read it, but something about the header of “Mission Main Street” caught our eye. It is targeted toward small business owners who are involved in the community. So we read their website and […]

Sensenich Ground Adjustable Corvair Propeller

Improve your performance of your Corvair engine and aircraft with the Sensenich Ground Adjustable propeller.

This prop is a great addition to your Corvair powered aircraft.  We have a high power and a low power option to accommodate any aircraft that can swing a 60″ propeller and larger:

High Pitch – Panther LS, Zenith 601, 650

Low Pitch – 750 STOL and Cruzer

Not sure of pitch  Use the text box below and we will call you to discuss further.