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Professional Products - Power+Plus

Power+Plus Features/Include:

  • Street Molds (cast of aluminum in heat treated steel molds, not sand )
  • Show Polished Finish
  • Dead Accurate Port Polishing
  • Outstanding Performance
  • 100% Pressure Tested
    Bonus features and benefits not found on competing manifolds all at a lower price than any equivalent manifold!
   Professional Products Power+Plus
 Big Block Chevy V8

Intake Manifold General Description:
 click here for more info and pictures (opens in new window)
 
Cyclone (Idle to 5,500 rpm)
The Professional Products Power+Plus Cyclone manifolds are low rise, dual plane models. These are excellent street manifolds and will provide increased power and torque over a wide rpm range, typically from idle to 5,500 rpm. They also feature excellent throttle response. These manifolds are available in both non-EGR and EGR* versions and the Cyclone models are street legal when used with the correct carburetor and application.

Crosswind (1,500-6,500 rpm)
The CrossWind models are all based on basic Typhoon designs and offer all the same benefits and design features found in similar CrossWind models. However the CrossWinds feature a lowered valley cover with an open area under the plenum that allows a free flow of air and also isolates the hot oil chamber from the plenum. This creates a cooling effect on the intake charge which provides additional power and torque in the 1,500 to 6,500 rpm range.

Hurricane (3,500-8,000 rpm)
These are single plane, high rise manifolds designed for all out racing applications. Our small block Hurricane has been proven in dyno tests to be the best overall performing manifold of this type. The Hurricane is one of the best performing manifolds of this type.
 
Polished: 53000 ($179)
Satin: 53001 ($139)
Type: CYCLONE (non-EGR)
Fits: Big Block Chevy (Oval Ports)
(includes carb adapter)
 
The Power+Plus Cyclone Manifold is a direct replacement manifold for the stock manifold on Chevy big block engines with general duty oval port heads. See note in yellow box below for specifics. This manifold will not fit under the hood of Corvettes without hood modifications. Will not fit “tall block” V8s. May be used with OEM or aftermarket carburetors. For street applications use the stock Quadra-Jet carburetor. For Street Performance use a 650-750 cfm performance or double pumper carb and for Competition use a 700-850 cfm double pumper. Note that the Power+Plus Manifold kit includes a carb adapter plate and gasket to allow the use of square bore carburetors. Square bore carbs on this manifold is not legal for use on any emission controlled vehicle. Will fit 1965 through 1990 oval port cylinder heads. Use a Fel-Pro #1210 (non-Printoseal) or #1212 (Printoseal) intake gasket with this manifold.

RPM Range: idle to 6000

Note: This is a stock replacement/street legal part for 396, 402, 427, and 454 V8s with OEM 4-bbl carb; 1965-’72 (1973 non-CA) passenger cars and 1966-’83 trucks, Suburbans, and heavy vehicles; except stock equipped EGR.
 
 
Polished: 53025 ($275)
Satin: 53026 ($215)
Type: CROSSWIND (Oval)
Fits: BB Chevy V8

Now available for the big block Chevy engine is this terrific Crosswind design manifold. It features oval ports, nitrous bosses, dual distributor holddowns and four corner water ports. This is the ultimate street manifold for 396, 427, 454 or 502 big block engines. It features a raised plenum area that allows air to pass under the plenum, producing a cooler intake charge with a resultant increase in power and torque output.

RPM Range: 1500 to 6500

Not: Not legal for sale or use on any pollution controlled motor vehicle. (Except Cyclone #53000/53001)
 
 
Polished: 53034 ($249)
Satin: 53035 ($189)
Type: HURRICANE (w/Dominator Carb Flange)
Fits: Big Block Chevy V8 (rectangular ports)
(ideal for up to 502 cid engines. Port size at flange is 1.75" x 2.35")

Our single plane big block manifold is now available with Dominator (Holley 4500) carburetor flange. Dual distributor holddowns. Nitrous/injector bosses. Four corner water ports. Available with show polished or satin (unpolished) finish. Priced over $100 less than many similar competitive single plane intake manifolds. Fits big block Chevy rectangular port cylinder heads on standard deck blocks.

RPM Range: 3000 to 7500

Note: This manifold is not legal for sale or use on any pollution controlled motor vehicle.
 
 
Polished: 53030 ($249)
Satin: 53031 ($189)
Type: HURRICANE
Fits: Big Block Chevy V8 (rectangular ports)

These manifolds for Big Block Chevys are a worthy companion to our phenomenally successful single plane small block racing manifold. Designed for serious performance big block applications, they feature nitrous bosses, dual distributor holddowns, four corner water ports, and are available for both rectangular or oval port cylinder heads. Rectangular port size at the gasket flange is 1.69-inches wide by 2.31-inches tall, which can be opened up to match the gasket and/or larger port cylinder heads. Runner size is effective for 468 to 540 cid engines. This man- ifold is available in a satin or show polished finish. Note: Use Fel-Pro intake gaskets #1211 (Printoseal) or #1275 (non-Printoseal). Both of these gaskets are the standard 1/16-inch thickness. Fel-Pro also offers a 1/8-inch thick non-Printoseal gasket set #1239 which could be required in some instances where the cylinder heads have been machined. Use an 800 cfm or larger 4150 square bore carburetor.

RPM Range: 3000 to 7500

Note: This manifold is not legal for sale or use on any pollution controlled motor vehicle.
 
 
Polished: 53036 ($249)
Satin: 53037 ($189)
Type: HURRICANE
Fits: Big Block Chevy V8

Similar to 53030 (see above), except with Oval Ports.
 
 
 
 
 
 
 
Sales/Tech Line: (603) 378-0090
Email: tech@flatlanderracing.com

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*All prices on this site are subject to change without notice. Flatlander Racing™ disclaims responsibility for any printing or typographical errors, and does not guarantee that all information is accurate.

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