Engine and Transmission Tech

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

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mgb260
Jim Nichols
Sequim,WA
(2465 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rods for 215
Posted by: mgb260
Date: December 12, 2013 07:24PM

Larry,I assumed would be very close, use the same Buick/Rover rod bearing. How much wider? Don't forget to add the crank clearance chamfer.


quietone
Larry Mimbs
Tennille, Ga.
(93 posts)

Registered:
07/13/2013 04:22PM

Main British Car:
Re: rods for 215
Posted by: quietone
Date: December 18, 2013 05:20PM

Jim, I forgot to measure the 301 big end. Something is somewhat troubling about these rods. They really have a bad reputation with the Fiero people. (Same rod as the 2.5L Iron Duke engine.) Has anyone heard of problems with these rods in the Pontiac turbo engine?


mgb260
Jim Nichols
Sequim,WA
(2465 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rods for 215
Posted by: mgb260
Date: December 18, 2013 06:21PM

I didn't know they were the same as the 4 cylinder rod. I wonder if the bad rep there might be NOS or extreme turbo boost.
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quietone
Larry Mimbs
Tennille, Ga.
(93 posts)

Registered:
07/13/2013 04:22PM

Main British Car:
Re: rods for 215
Posted by: quietone
Date: December 19, 2013 05:28PM

Jim, 300 Buick rod b.e. .843, 301 Pontiac b.e. .899.


mgb260
Jim Nichols
Sequim,WA
(2465 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rods for 215
Posted by: mgb260
Date: December 19, 2013 06:24PM

Larry,Thanks. Did you get a 4.0 block to look at?


quietone
Larry Mimbs
Tennille, Ga.
(93 posts)

Registered:
07/13/2013 04:22PM

Main British Car:
Re: rods for 215
Posted by: quietone
Date: December 20, 2013 04:49PM

No 4.0 yet.


mgb260
Jim Nichols
Sequim,WA
(2465 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rods for 215
Posted by: mgb260
Date: December 23, 2013 11:48AM

Larry, There appeared to be a problem with the narrow beam on those rods, the 87 and later 2.5 ones would be better as they don't neck down. I wonder if the Turbo 301 used the thicker beam rods before they came out later for the 87 and up 2.5.



Edited 2 time(s). Last edit at 12/24/2013 04:01PM by mgb260.



quietone
Larry Mimbs
Tennille, Ga.
(93 posts)

Registered:
07/13/2013 04:22PM

Main British Car:
Re: rods for 215
Posted by: quietone
Date: January 02, 2014 06:10PM

Thanks for all the good information and help on the rods. Decided that with all the time and money involved that I would take the safest route. SBC 6" H-beam rods for $210 shipped.


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: rods for 215
Posted by: roverman
Date: January 03, 2014 11:38AM

Chinese win again , perhaps it's best ?


quietone
Larry Mimbs
Tennille, Ga.
(93 posts)

Registered:
07/13/2013 04:22PM

Main British Car:
Re: rods for 215
Posted by: quietone
Date: January 03, 2014 05:15PM

The Chinese make things to order for American businessmen. What does that tell you?


quietone
Larry Mimbs
Tennille, Ga.
(93 posts)

Registered:
07/13/2013 04:22PM

Main British Car:
Re: rods for 215
Posted by: quietone
Date: January 11, 2014 11:28AM

Rods look good. Bolts are 7/16 8640. Weight is +- 2 g.
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