Bill Mitchell 061040 SBC Motown Single Plane Intake Manifold

Name: Bill Mitchell 061040 SBC Motown Single Plane Intake Manifold
Brand: Bill Mitchell
SKU: 82461040
Price: 475.25 USD
Availability: LimitedAvailability
Rating: 4.2 (6 reviews)

6 Reviews

3 Questions

Operates most efficiently in the 2500 to 7500 RPM range
Manifolds are specially designed around the 350 c.i. engines
Has the low-end throttle response and torque comparable to a dual plane

$475.25

each

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Product Summary

383, 395, 400, 421, 434, One Carburetor Quantity

Operates most efficiently in the 2500 to 7500 RPM range
Manifolds are specially designed around the 350 c.i. engines
Has the low-end throttle response and torque comparable to a dual plane
They are proven to increase performance by 15-25 horsepower over the competition
The "turtle" on the manifold floor that helps increase velocity for improved bottom-end performance

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Key Specs

MFG. Part #	061040
Brand	Bill Mitchell
Intake Manifold Type	Single Plane
Material Type	Aluminum

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Bill Mitchell 061040 Details

While most manufacturers of small block Chevy intake manifolds have designed their units around 350 c.i. engines, Bill Mitchell Products has developed a very efficient manifold for 383 c.i. & larger engines that's proven to increase performance by 15-25 horsepower over the competition.

In addition to out-powering the competition, it's important to note that these single plane manifolds are designed to operate most efficiently in the 2500 to 7500 RPM range, and have the low-end throttle response and torque comparable to a dual plane. Look inside the plenum and you'll see a "turtle" on the manifold floor that helps increase velocity for improved bottom-end performance.

Plenum: Single
Flange: 4150
Deck Height: 9.025"
NOS Bosses: Yes
EFI Bosses: No
RPM Range: 2500-7500
OAH: 5.625"
Port Size: 2.000" x 1.180"

Holley 4150 carb flange.

Specs

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA Prop 65

CARB warning

Bill Mitchell 061040 Specifications

KEY SPECS
MFG. Part #	061040
Brand	Bill Mitchell
Intake Manifold Type	Single Plane
Material Type	Aluminum

GENERAL
Carburetor Quantity	One
Carburetor Flange Type	4-Barrel Square Bore
Finish	Natural
Port Height	2"
Port Width	1.18"
Bolt Hole Pattern	5.160" x 5.625"
Sold in Quantity	Each
Notes	Works with Fel Pro intake gasket #1205, if any porting is done works with #1206.