Merc

My buddy Cougar Tom has a problem. He just had his 428 CJ rebuilt at a local
machine shop. The dipshits bored it oversize without sonic checking and put
it all together. He installs it, fires it up and antifreeze runs out the
exhaust. Tears it down to find a 3 inch crack in the #7 cylinder. So his
options are: get the block sleeved or find another block. I found for him a
361 ford block as well as a number of 390s. Whats the story on the 361? I
seem to recall it being better to bore out than the 352 and 390. I have told
you guys about this car before. Its a 1970 Cougar XR7 convert. with 428 CJ 4
SP. The block has no casting #s so he's thinking of a replacement block.
He's owned this thing since the late 70s and has been restoring it now for
the last 3 or 4 years. Its one of 17 built with this combo.

Merc
Thundersnake#16

CobraJet

In article <MNX6e.26783$yV3.2657@clgrps12>, Merc
<mach1muscle@hotmail.cam> wrote:

> My buddy Cougar Tom has a problem. He just had his 428 CJ rebuilt at a local
> machine shop. The dipshits bored it oversize without sonic checking and put
> it all together. He installs it, fires it up and antifreeze runs out the
> exhaust. Tears it down to find a 3 inch crack in the #7 cylinder. So his
> options are: get the block sleeved or find another block. I found for him a
> 361 ford block as well as a number of 390s. Whats the story on the 361? I
> seem to recall it being better to bore out than the 352 and 390. I have told
> you guys about this car before. Its a 1970 Cougar XR7 convert. with 428 CJ 4
> SP. The block has no casting #s so he's thinking of a replacement block.
> He's owned this thing since the late 70s and has been restoring it now for
> the last 3 or 4 years. Its one of 17 built with this combo.
>
> Merc
> Thundersnake#16
>
>

Well the easiest way out is a sleeve. Lots of engines running around
with sleeves. Any of the 4.05 blocks will require all new machining a
set of pistons.

Very few machine shops will sonic check without being paid to do so.
The responsibility is on the customer to have it done. Perhaps they
suggested it but he backed out? Was this +.030"? Of course, he will
have to sonic the block to look at the rest of the bores. He may need
to do that anyway with another one. The second choice IMO would be the
ribbed D2 390 truck block. They seem to have extra meat; I have one
checked and bored to stock 428 size.

CobraJet

--
ThunderSnake #1

fewedge@pacbell.net

CobraJet wrote:
> In article <MNX6e.26783$yV3.2657@clgrps12>, Merc
> <mach1muscle@hotmail.cam> wrote:
>
> > My buddy Cougar Tom has a problem. He just had his 428 CJ rebuilt
at a local
> > machine shop. The dipshits bored it oversize without sonic checking
and put
> > it all together. He installs it, fires it up and antifreeze runs
out the
> > exhaust. Tears it down to find a 3 inch crack in the #7 cylinder.
So his
> > options are: get the block sleeved or find another block. I found
for him a
> > 361 ford block as well as a number of 390s. Whats the story on the
361? I
> > seem to recall it being better to bore out than the 352 and 390. I
have told
> > you guys about this car before. Its a 1970 Cougar XR7 convert. with
428 CJ 4
> > SP. The block has no casting #s so he's thinking of a replacement
block.
> > He's owned this thing since the late 70s and has been restoring it
now for
> > the last 3 or 4 years. Its one of 17 built with this combo.
> >
> > Merc
> > Thundersnake#16
> >
> >
>
> Well the easiest way out is a sleeve. Lots of engines running
around
> with sleeves. Any of the 4.05 blocks will require all new machining a
> set of pistons.
>
> Very few machine shops will sonic check without being paid to do
so.
> The responsibility is on the customer to have it done. Perhaps they
> suggested it but he backed out? Was this +.030"? Of course, he will
> have to sonic the block to look at the rest of the bores. He may need
> to do that anyway with another one. The second choice IMO would be
the
> ribbed D2 390 truck block. They seem to have extra meat; I have one
> checked and bored to stock 428 size.
>
> CobraJet
>
> --
> ThunderSnake #1

Just get a Genesis block. A 527 inch 1970 Cougar XR7 convert 4 speed
would be way cool.
Hey Cobra Jet I owe you a few pic's of the Cobra. I am still off line
at home. I can send them to you from work.


FeWedge T.S. #13

CobraJet

In article <1113348028.102539.313110@z14g2000cwz.googlegroups.com>,
<fewedge@pacbell.net> wrote:

> CobraJet wrote:
> > In article <MNX6e.26783$yV3.2657@clgrps12>, Merc
> > <mach1muscle@hotmail.cam> wrote:
> >
> > > My buddy Cougar Tom has a problem. He just had his 428 CJ rebuilt
> at a local
> > > machine shop. The dipshits bored it oversize without sonic checking
> and put
> > > it all together. He installs it, fires it up and antifreeze runs
> out the
> > > exhaust. Tears it down to find a 3 inch crack in the #7 cylinder.
> So his
> > > options are: get the block sleeved or find another block. I found
> for him a
> > > 361 ford block as well as a number of 390s. Whats the story on the
> 361? I
> > > seem to recall it being better to bore out than the 352 and 390. I
> have told
> > > you guys about this car before. Its a 1970 Cougar XR7 convert. with
> 428 CJ 4
> > > SP. The block has no casting #s so he's thinking of a replacement
> block.
> > > He's owned this thing since the late 70s and has been restoring it
> now for
> > > the last 3 or 4 years. Its one of 17 built with this combo.
> > >
> > > Merc
> > > Thundersnake#16
> > >
> > >
> >
> > Well the easiest way out is a sleeve. Lots of engines running
> around
> > with sleeves. Any of the 4.05 blocks will require all new machining a
> > set of pistons.
> >
> > Very few machine shops will sonic check without being paid to do
> so.
> > The responsibility is on the customer to have it done. Perhaps they
> > suggested it but he backed out? Was this +.030"? Of course, he will
> > have to sonic the block to look at the rest of the bores. He may need
> > to do that anyway with another one. The second choice IMO would be
> the
> > ribbed D2 390 truck block. They seem to have extra meat; I have one
> > checked and bored to stock 428 size.
> >
> > CobraJet
> >
> > --
> > ThunderSnake #1
>
> Just get a Genesis block. A 527 inch 1970 Cougar XR7 convert 4 speed
> would be way cool.

If he could afford a Genesis, he'd be better off getting another
correct CJ block. And I think I read something about them having supply
problems again.

> Hey Cobra Jet I owe you a few pic's of the Cobra. I am still off line
> at home. I can send them to you from work.

Pardon me if I don't hold my breath.
>
>
> FeWedge T.S. #13
>

--
ThunderSnake #1

fewedge@pacbell.net

Send me your email oh forked tongued one. I'll send them to you now.

FeWedge #13

66 6F HCS

"Merc" <mach1muscle@hotmail.cam> wrote
>Whats the story on the 361? I
> seem to recall it being better to bore out than the 352 and 390. I have
> told
> you guys about this car before.

Do you mean the 360 Truck motor? If so, it's "basically" a 390 block with a
352 crank. Drop in a 428 crank and you have yourself a 410 with all stock
parts.
--
Scott W.
'66 HCS Mustang 289
'68 Ranchero 500 302
'69 Mustang Sportsroof 351W
ThunderSnake #57
http://home.comcast.net/~vanguard92/

John

<fewedge@pacbell.net> wrote in message
news:1113350423.223663.176730@g14g2000cwa.googlegroups.com...
> Send me your email oh forked tongued one. I'll send them to you now.
>

Yeah, and please post it. I want to see that MONSTER.

--
John
ThunderSnake #59

CobraJet

In article <1113350423.223663.176730@g14g2000cwa.googlegroups.com>,
<fewedge@pacbell.net> wrote:

> Send me your email oh forked tongued one. I'll send them to you now.
>
> FeWedge #13
>

Just got back in. I'll call you at home tonight.

--
ThunderSnake #1

Whole Lotta Tom

Merc wrote:
> My buddy Cougar Tom has a problem. He just had his 428 CJ rebuilt at
> a local machine shop. The dipshits bored it oversize without sonic
> checking and put it all together. He installs it, fires it up and
> antifreeze runs out the exhaust. Tears it down to find a 3 inch crack
> in the #7 cylinder. So his options are: get the block sleeved or find
> another block. I found for him a 361 ford block as well as a number
> of 390s. Whats the story on the 361? I seem to recall it being better
> to bore out than the 352 and 390. I have told you guys about this car
> before. Its a 1970 Cougar XR7 convert. with 428 CJ 4 SP. The block
> has no casting #s so he's thinking of a replacement block. He's owned
> this thing since the late 70s and has been restoring it now for the
> last 3 or 4 years. Its one of 17 built with this combo.
>
> Merc
> Thundersnake#16


The 361 would be the same as the 391 block, if it is in fact an FT block.
Does it have the reversed 105 on the front?

You can not assume what block will bore over without a sonic check. The
problem is not so much wall thickness, although that IS a persistant
problem. The real killer is core shift. My 391 block was a dud for large
bores because of core shift.

I suggest having that cylinder sleeved, then bored for the new slug.

--
Tom
TS3
http://www.geocities.com/styleline58/

Visit the Cleveland Engine Forum
http://www.351cleveland.net


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