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#5606227
Offenhauser 6227C C Series Ford 240-300 6 Cyl 4 Barrel Intake
- 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
Key Specs
| MFG. Part # | 6227 |
| Brand | Offenhauser |
| Intake Manifold Type | Single Plane |
| Material Type | Aluminum |
Need To Know
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Return PolicyOffenhauser 6227 Details
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.
CARB Warning
For race/ off road use or for use on pre-1966 vehicles.
Offenhauser 6227 Specifications
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
9 Reviews
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.
Ratings & Reviews
4.9
9 Reviews
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.
4.9
9 reviews
5
8
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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
2 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
6 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
7 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
8 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
8 years ago
49MercPapo
La Habra, CA
Verified
Great product.
Would Recommend
Showing 9 of 9 reviews
Fitment
Fitment
1961-1967 Ford Econoline
240 Ford Inline 6