mgb-v8
[Top] [All Lists]

Re: Ford 302 vs BOP/Rover 215

To: larry@larryembrey.com, mgb-v8@autox.team.net
Subject: Re: Ford 302 vs BOP/Rover 215
From: DANMAS@aol.com
Date: Wed, 20 Sep 2000 13:22:51 EDT
Reply-to: DANMAS@aol.com
Sender: owner-mgb-v8@autox.team.net
In a message dated 9/19/2000 7:46:37 PM Eastern Daylight Time, 
larry@larryembrey.com writes:

>  HEY!!  WHAT HAS ANYONE DONE IN REGARDS TO MOTOR MOUNTS FOR THE 302!??

Larry,

I built my own for the TR6, but that design won't work on the MGB. Ford makes 
a nice motor mount that bolts to the chassis with one bolt, and to the block 
with two. If you want, I can scan a picture of them and send to you. If I 
recall correctly, Dale Spooner welded a steel plate (sorta "u" shaped) on 
each side of the MGB chassis, at an angle to match, and bolted the these 
mounts to that. You should contact him (mgv8vt@aol.com) for more info. These 
particular mounts would, I think, work perfectly for an MGB installation.

One thing to keep in mind is that the motor mount bolt holes on the Ford are 
offset from one side to the other. I don't recall the exact number, but it's 
about 1/2" or so. If you want your mounts to be the same for both sides, you 
will have to take this into account, and split the difference. If you locate 
the chassis mount holes correctly, the mounts can be interchanged, left to 
right, as the factory mounts are; otherwise, you'll need to locate the 
chassis mounts differently on opposite sides of the car.


In a message dated 9/19/2000 7:48:47 PM Eastern Daylight Time, 
MGTRAutoXr@sprintmail.com writes:

> I've got a spare 215 block in my garage and it weighs far less than 97 
pounds -
>  and that is with two pistons still in it.  I'll weigh it next time I'm in 
there.

Kevin,

Thanks, that would be great. It would be nice to KNOW for a change, rather 
than just guessing. Any idea why the large weight descrepancy between the 
Ford and the 215 blocks?

In a message dated 9/20/2000 10:00:55 AM Eastern Daylight Time, 
yt_one@hotmail.com writes:

>I have a alum water pump on the way, once I get it, I will weight both and
>let everyone know.  The Alum block HAS to save more than 30lbs, that just
>seems a bit on the low side now that I look at it.  Probably means that the
>iron block weighs more than 127lbs.

> Keep in mind aluminum is not as strong (depending on alloy) or stiff as 
>  steel, therefore more aluminum is required to match the strength and 
>  stiffness of steel. So, an aluminum block may require more material to 
match 
> 
>  the strength of the steel block, hence the disparity between the actual 
>  block weights and the material weights.

Chad,

Also, we need to keep in mind that the 215 block extends below the crank 
center line whereas the Ford blocks stops at the centerline, so, all else 
being equal (which it never is, of course), the 215 would weigh more than the 
Ford. BTW, I just weighed the Ford block again, and the scales showed 125 
pounds this time - well within the accurcy of the bathroom scales I'm using. 
The 97 pound weight for the aluminum Ford came right out of the Ford 
MotorSport catalog, and has been listed as 97 pounds in the last four 
catalogs from them. It still could be an error, of course - those kind of 
errors have a way of perpetuating themselves. The Ford aluminum engine is 
intended strictly for racing applications, so one would expect it to be a bit 
stouter than if it were for street use. The Ford aluminum block costs around 
$4,000!  Just for the bare block!  Ouch!  $133/pound!

In a message dated 9/20/2000 11:30:02 AM Eastern Daylight Time, 
larryhoy@prodigy.net writes:

> I guess I hadn't considered the aluminum and iron blocks would be 
different. It's my understanding that 6061 T-6, 7075 T-6 or 356 T-6 aluminum 
alloys 
> have essentially the same strength of mild steel, not sure how it compares 
to  cast iron used in engine blocks.   However this discussion has made me 
run to 
> some of my reference books, I found that cast iron strengths are all across 
the  board, some are much less than aluminum and some are much higher.  I 
guess I have enough information to be dangerous (and inaccurate) so pick and 
choose what ya believe.

Larry, 

I hope I didn't give the impression that *I* know what I'm talking about!  
I'm only on a "seek and find" mission myself.

Dan Masters
Alcoa, Tennessee

Triumph TR 250 - TR6 Electrical Maintenance Handbook:
http://members.aol.com/danmas6/
Stuffing a V8 into a small British sports car:
http://members.aol.com/danmas/
MGBV8 Newsletter:
http://members.aol.com/danmas4/mgv8.htm

<Prev in Thread] Current Thread [Next in Thread>