Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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oblvnnwtnjhn
Spencer Crawford

(19 posts)

Registered:
02/13/2021 05:52PM

Main British Car:
Re: Buick 266 stroker
Posted by: oblvnnwtnjhn
Date: February 04, 2023 05:27PM

@jim blackwood I will keep an eye out, thanks for the feedback

@jim nichols hm, the Weber 38 DGAS I just bought can flow much like the 390, I know there are adapters out there, since I have it, may be worth playing with before deciding. Is there a better intake option than stock in my basic use case that's worthwhile?

Gents I really appreciate all the feedback. It's a relief to have a plan formulated for the engine.


mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Buick 266 stroker
Posted by: mgb260
Date: February 04, 2023 05:33PM

The Offy dual port is best for low end throttle response and fuel mileage. Edelbrock Performer is best street performance. Stock 4 barrel is OK. There are three or four stock ones on Ebay for under $200. The Weber will be fine on a 2 barrel intake but it still needs a Rochester to Weber adapter.


oblvnnwtnjhn
Spencer Crawford

(19 posts)

Registered:
02/13/2021 05:52PM

Main British Car:
Re: Buick 266 stroker
Posted by: oblvnnwtnjhn
Date: February 04, 2023 07:21PM

@jim Nichols I put in an order almost a year back with TA Performance for the Offy, I think he found out they aren't making it anymore or waiting until enough order to make another run. I guess second hand market if I did will be my best choice.
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mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Buick 266 stroker
Posted by: mgb260
Date: February 04, 2023 08:55PM

New ones are too expensive at around $900! from Summit. Available from England:

[www.vitesse-ltd.com]

I'd run the 2 barrel until you found a used one.



Edited 2 time(s). Last edit at 02/04/2023 08:59PM by mgb260.


MGBV8
Carl Floyd
Kingsport, TN
(4514 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: Buick 266 stroker
Posted by: MGBV8
Date: February 05, 2023 09:27AM

I'd use a stock GM 215 intake manifold before I'd touch the much maligned Offy JWR 7001 dual port. Maybe the Offy offers a smidge more low end torque, but gives it up everywhere else. Certainly wouldn't pay big bucks for it. I might try one if someone gave me one.

IMO, there is a good reason no other manufacturers produced anything like it.

I have been using my OEM Buick 215 manifold with a Carter/Edelbrock 500 for 22 years with good results.
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