Offenhauser 6227C C Series Ford 240-300 6 Cyl 4 Barrel Intake

#5606227

Offenhauser 6227C C Series Ford 240-300 6 Cyl 4 Barrel Intake

Name: Offenhauser 6227C C Series Ford 240-300 6 Cyl 4 Barrel Intake
Brand: Offenhauser
SKU: 5606227
Price: 641.99 USD
Availability: LimitedAvailability
Rating: 4.9 (10 reviews)

10 Reviews

13 Questions

Improve torque in the mid and upper ranges
Power bands that can span form 2,500 rpm to more than 7,000 rpm depending on engine
Square bore Holley or Carter carbs

$641.99

/each

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Product Summary

Single Plane Intake Manifold Type, Aluminum, Natural

Improve torque in the mid and upper ranges
Power bands that can span form 2,500 rpm to more than 7,000 rpm depending on engine
Square bore Holley or Carter carbs
Emission-control provisions can be blocked off for competition
Gaskets and linkage NOT INCLUDED

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Key Specs

MFG. Part #	6227
Brand	Offenhauser
Intake Manifold Type	Single Plane
Material Type	Aluminum

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Offenhauser 6227 Details

The Dual Port & "C" Series accept the Carter or Holley STD square-bore 4 bbl carb. Carb size recommended for Dual Port is from 390 CFM to 500 CFM. for "C" Series 500 CFM and larger Use Holley No. 6299 Or 8007 Carter No.9400, or Carter No. 9500 on Dual Port - Remove kick-down arm for linkage clearance. Carbs clear "C" Series manifold without modification. Offy universal linkage 560-6230 is recommended In most Installations.

These manifolds on a stock 240 or 300 C.I. engine can Increase HP output by 50 HP! Dyno tests on a Ford six with Dual Port manifold, headers, and cam produced as much as 115 HP over the stocker!

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

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, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. 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.

CARB warning

Offenhauser 6227 Specifications

KEY SPECS
MFG. Part #	6227
Brand	Offenhauser
Intake Manifold Type	Single Plane
Material Type	Aluminum

GENERAL
Carburetor Quantity	One
Finish	Natural
Sold in Quantity	Each

Ratings & Reviews

4.9

10 Reviews

Overall Assessment

Customers highly appreciated the product, highlighting its perfect fit and high quality. The product significantly increased horsepower and fit seamlessly with various engine mechanisms, enhancing the vehicle's performance effectively. Moreover, it has been recommended for its practicality, stating it could replace stock components for better results. However, some customers suggested slightly smoother ports and cleaner threads would improve the product further. Importantly, customers repeatedly mentioned they would purchase this product again, based on its impactful features and reliable performance. They also praised the product in comparison to others in the market, reaffirming its positive attributes.

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4.9

10 reviews

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Yes. I would buy again

5.0

5 months ago

Mechanicaljosh

Richmon, Ky

Verified

Came exactly as described. No flaws. Perfect.

Would Recommend

I would buy other items from you.

5.0

a year ago

Straight six

Helper, Utah

It's going on an 81 Ford F150 with a slightly bigger cam.Ithink it is going to work great.

Would Recommend

Perfect Fit and High Quality

5.0

3 years ago

Dana

Missouri

Verified

Bolted right up on my EFI 300 head. No problems fitting the carburetor or anything else. I would recommend using studs instead of the stock manifold bolts. I'm very happy with it.

Would Recommend

Great product and service

5.0

3 years ago

Len

Newnan Georgia

Verified

Almost doubled the horsepower

Would Recommend

I would recommend to any living soul with a 300cu 6cyl.

5.0

4 years ago

Big moose

Brantford, Ontario Canada

It is a '79 F100. I did the dual plenum intake. The head was decked and 3 angle valve job. Holly 600 vacuum secondaries with a light spring in the secondaries. Crower Cam and lifters. Run out to dual back Jack headers and SS exhaust and Red Bullets rights the behind the cab. I never put a tachometer on it. 3 spd auto, I shifted to 2nd gear at 50mph, and the valves floated.

Would Recommend

1 would buy this again

5.0

4 years ago

kauaiman

hawaii

Verified

used the manifold to increase hp from 88hp to 170hp in my ford f150 with 300 engine

Would Recommend

Nice Manifold

5.0

7 years ago

Gib

Sioux Falls

Verified

The ports could have been a little smoother but all all good!!😀 Painted it blue looks very nice on this 300 6. Install was a breeze.

Would Recommend

If this is your first 4bbl intake swap don't rush ...

4.0

8 years ago

simpletim

Hickory, NC

Verified

I have not installed this yet. I'm switching from a 1bbl to a 4bbl on a ford 300 I6. Had I known a little more I would have gone with the dual plane version, but I'm still expecting good things. The only gripe I have is that the threads are rough, I was expecting much cleaner threads. The bolt hole for attaching to the exhuast manifold will only accept a few (4) turns of the bolt, A helicoil type insert should both improve the depth and strength of that location Also worth noting: this part has a 3 bolt pattern that WILL bolt up to the Heavy Duty exhaust manifold but NOT the stock manifold which has a 4 bolt pattern

Yes

5.0

9 years ago

Horace

Alabama

Verified

I've have used Offy parts before and I also sold a lot of those intake . I managed speed shop in Atlanta . I also worked a a large performance parts warehouse in Atlanta .

Would Recommend

I would buy this again.

5.0

9 years ago

49MercPapo

La Habra, CA

Verified

Great product.

Would Recommend

Showing 10 of 10 reviews

Questions & Answers

13 Questions • 10 Answers

Sort Questions

What is the opening for on the underside of the intake? Does this need blocked off if not used? If so do you have the blanking cover?

by Marv

• 2 years ago

1 answer

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Can I use my stock exhaust manifold as well as using headers with this intake?

by Stevie Studmuffin

• 4 years ago

1 answer

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will My Holley sniper efi system bolt up to this?

by Drew Smith

• 7 years ago

1 answer

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What is the proper direction for carb to sit I will be using edelbrock 1405 primary to front of vehicle or facing valve cover Thanks

by Teds Rats

• 7 years ago

1 answer

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Will the single plane manifold bolt up correctly to a 1967 F 250 300 in-line six? Is there an advantage to the dual plane intake compared to the single plane intake?

by Undecided

• 7 years ago

1 answer

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Can I get the dimensions of this manifold from where it bolts to the block to the outermost edge. I need to see if this will fit under the doghouse on a 66 Econoline. My intuition says no but dimensions will confirm.

by David

• 8 years ago

1 answer

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Where are these manifolds made?

by Kyle

• 8 years ago

1 answer

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Would this intake work with a 1995 Ford F150 with the 4.9 inline 6

by Tony

• 9 years ago

1 answer

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Is there linkage for sale to go with this intake

by Mark

• 9 years ago

1 answer

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Does this work with Edelbrock 600 cfm 1406? Or will I need adapter?

by Yoda

• 9 years ago

1 answer

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Fitment

1961-1967 Ford Econoline

240 Ford Inline 6