Subject: Re: [Tigers] 260 for the 21 century

From: Scott Hutchinson via Tigers <[email-masked]>
Date: Sat, 20 Jun 2015 23:19:20 +0000

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http://www.wrljet.com/fordv8/indy.html

Sent from my iPhone

On Jun 20, 2015, at 7:10 PM, Mark Rense via Tigers <[email-masked]<m=
ailto:[email-masked]>> wrote:

Lot=92s of issues chasing horsepower with a 260 project. The 260=92s smalle=
r bore restricts valve size, valve shrouding occurs with any valve bigger t=
han 1.85=94. The stock pistons barely produced 8.5:1 compression even with =
the small-chamber heads, shaving the heads enough to get real compression b=
rings squish zones down to a few thousands and screws up flame front propag=
ation, so there is only so much that can be gained, plus the castings can=
=92t support the port sizes needed for modern induction. Sure you can spin =
one to 8 grand but it won=92t make much power because it won=92t breath, bu=
t I suppose a four valve per cylinder head would cure that!

Once you decide to spend the $900 for custom pistons then doors open. A 3.4=
0=94 stroke crank brings 313 cubic inches, and better breathing heads, a fu=
ll roller cam and valve train, and modern intakes all help build torque. St=
ill not a revver but a good street engine.

Of course you have to ask yourself WHY? I mean, who is going to know which =
block is in your car? Who cares? Well some folks do, since I have built a c=
ouple 260=92s for them. To them, bragging rights that it=92s the original e=
ngine are important.  Others just prefer stashing the old 260 under the ben=
ch and building something more modern. That=92s what I did with both my Tig=
ers, both sport 5-bolt 289 based engines.

I just finished another 5-bolt 331 engine (all Ford Motorsport components t=
his time) and have two more 5-bolt blocks left, then I think I=92m done.

Bugz
PS If you REALLY want a challenge I ran across a first-year 221 SBF=85
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Sent from my iPhone</div>
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On Jun 20, 2015, at 7:10 PM, Mark Rense via Tigers &lt;<a href=3D"mailto:ti=
[email-masked]">[email-masked]</a>&gt; wrote:<br>
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Lot=92s of issues chasing horsepower with a 260 proj=
ect. The 260=92s smaller bore restricts valve size, valve shrouding occurs =
with any valve bigger than 1.85=94. The stock pistons barely produced 8.5:1=
 compression even with the small-chamber
 heads, shaving the heads enough to get real compression brings squish zone=
s down to a few thousands and screws up flame front propagation, so there i=
s only so much that can be gained, plus the castings can=92t support the po=
rt sizes needed for modern induction.
 Sure you can spin one to 8 grand but it won=92t make much power because it=
 won=92t breath, but I suppose a four valve per cylinder head would cure th=
at!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Once you decide to spend the $900 for custom pistons=
 then doors open. A 3.40=94 stroke crank brings 313 cubic inches, and bette=
r breathing heads, a full roller cam and valve train, and modern intakes al=
l help build torque. Still not a revver
 but a good street engine.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Of course you have to ask yourself WHY? I mean, who =
is going to know which block is in your car? Who cares? Well some folks do,=
 since I have built a couple 260=92s for them. To them, bragging rights tha=
t it=92s the original engine are important.
 &nbsp;Others just prefer stashing the old 260 under the bench and building=
 something more modern. That=92s what I did with both my Tigers, both sport=
 5-bolt 289 based engines.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I just finished another 5-bolt 331 engine (all Ford =
Motorsport components this time) and have two more 5-bolt blocks left, then=
 I think I=92m done.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Bugz<o:p></o:p></p>
<p class=3D"MsoNormal">PS If you REALLY want a challenge I ran across a fir=
st-year 221 SBF=85<o:p></o:p></p>
</div>
</div>
</blockquote>
<blockquote type=3D"cite">
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From: Larry Paulick via Tigers <[email-masked]>
Date: Sun, 21 Jun 2015 10:46:09 -0400

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Very interesting article, which shows how much work and money is needed =
to get HP from a 260 ci engine.  When I see claims of 300hp from a 260 =
in a Tiger, I am reminded of how much work it is to get this kind of hp, =
as noted in this article.=20

I  had an early 2 door Fairlane with a 221ci and 3 speed, which was a =
lot of fun, and a nice family car.=20

My Tiger has a 1990 Mustang 5.0L with F4B, double pumper Holley, roller =
rockers and roller cam (stock), which dyno=92ed at 297 hp at 4800 rpm =
and torque at 347.  I gave away a 289 HiPo to a friend, cause I wanted a =
toque engine, not a high rpm engine.

HP is great for bragging, but it is torque that gets you going.

Larry

BTW got engine, T5 trans and all FI including hardness and box for $1200 =
delivered from local junk yard, after I saw car and engine running in =
the car.  Cost per hp and torque is hard to beat with CI.

On Jun 20, 2015, at 7:19 PM, Scott Hutchinson via Tigers =
<[email-masked]> wrote:

>=20
>=20
>=20
> On Jun 20, 2015, at 7:10 PM, Mark Rense via Tigers =
<[email-masked]> wrote:
>=20
>> Lot=92s of issues chasing horsepower with a 260 project. The 260=92s =
smaller bore restricts valve size, valve shrouding occurs with any valve =
bigger than 1.85=94. The stock pistons barely produced 8.5:1 compression =
even with the small-chamber heads, shaving the heads enough to get real =
compression brings squish zones down to a few thousands and screws up =
flame front propagation, so there is only so much that can be gained, =
plus the castings can=92t support the port sizes needed for modern =
induction. Sure you can spin one to 8 grand but it won=92t make much =
power because it won=92t breath, but I suppose a four valve per cylinder =
head would cure that!
>> =20
>> Once you decide to spend the $900 for custom pistons then doors open. =
A 3.40=94 stroke crank brings 313 cubic inches, and better breathing =
heads, a full roller cam and valve train, and modern intakes all help =
build torque. Still not a revver but a good street engine.
>> =20
>> Of course you have to ask yourself WHY? I mean, who is going to know =
which block is in your car? Who cares? Well some folks do, since I have =
built a couple 260=92s for them. To them, bragging rights that it=92s =
the original engine are important.  Others just prefer stashing the old =
260 under the bench and building something more modern. That=92s what I =
did with both my Tigers, both sport 5-bolt 289 based engines.
>> =20
>> I just finished another 5-bolt 331 engine (all Ford Motorsport =
components this time) and have two more 5-bolt blocks left, then I think =
I=92m done.
>> =20
>>=20
>>=20
>> Donate: http://www.team.net/donate.html
>> Forums: http://www.team.net/forums
>> Unsubscribe: =
http://autox.team.net/mailman/options/tigers/[email-masked]
>>=20
>>=20
>=20
> *** *** ***
> This message contains information which may be confidential and =
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the addressee), you may not use, copy or disclose to anyone the message =
or any information contained in the message. If you have received the =
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the message.
>=20
>=20
>=20
> Donate: http://www.team.net/donate.html
> Forums: http://www.team.net/forums
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Very =
interesting article, which shows how much work and money is needed to =
get HP from a 260 ci engine. &nbsp;When I see claims of 300hp from a 260 =
in a Tiger, I am reminded of how much work it is to get this kind of hp, =
as noted in this article.&nbsp;<div><br></div><div>I &nbsp;had an early =
2 door Fairlane with a 221ci and 3 speed, which was a lot of fun, and a =
nice family car.&nbsp;</div><div><br></div><div>My Tiger has a 1990 =
Mustang 5.0L with F4B, double pumper Holley, roller rockers and roller =
cam (stock), which dyno=92ed at 297 hp at 4800 rpm and torque at 347. =
&nbsp;I gave away a 289 HiPo to a friend, cause I wanted a toque engine, =
not a high rpm engine.</div><div><br></div><div>HP is great for =
bragging, but it is torque that gets you =
going.</div><div><br></div><div>Larry</div><div><br></div><div>BTW got =
engine, T5 trans and all FI including hardness and box for $1200 =
delivered from local junk yard, after I saw car and engine running in =
the car. &nbsp;Cost per hp and torque is hard to beat with =
CI.</div><div><br></div><div><br><div><div>On Jun 20, 2015, at 7:19 PM, =
Scott Hutchinson via Tigers &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><div dir=3D"auto" style=3D"font-family: Times-Roman; =
font-size: 24px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: =
0px;"><div><a href=3D"http://www.wrljet.com/fordv8/indy.html" =
style=3D"color: rgb(149, 79, 114); text-decoration: =
underline;">http://www.wrljet.com/fordv8/indy.html</a></div><div><br></div=
><div><br>Sent from my iPhone</div><div><br>On Jun 20, 2015, at 7:10 PM, =
Mark Rense via Tigers &lt;<a href=3D"mailto:[email-masked]" =
style=3D"color: rgb(149, 79, 114); text-decoration: =
underline;">[email-masked]</a>&gt; =
wrote:<br><br></div><blockquote type=3D"cite"><div class=3D"WordSection1" =
style=3D"page: WordSection1;"><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;">Lot=92s of issues =
chasing horsepower with a 260 project. The 260=92s smaller bore =
restricts valve size, valve shrouding occurs with any valve bigger than =
1.85=94. The stock pistons barely produced 8.5:1 compression even with =
the small-chamber heads, shaving the heads enough to get real =
compression brings squish zones down to a few thousands and screws up =
flame front propagation, so there is only so much that can be gained, =
plus the castings can=92t support the port sizes needed for modern =
induction. Sure you can spin one to 8 grand but it won=92t make much =
power because it won=92t breath, but I suppose a four valve per cylinder =
head would cure that!<o:p></o:p></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif;"><o:p>&nbsp;</o:p></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">Once you =
decide to spend the $900 for custom pistons then doors open. A 3.40=94 =
stroke crank brings 313 cubic inches, and better breathing heads, a full =
roller cam and valve train, and modern intakes all help build torque. =
Still not a revver but a good street engine.<o:p></o:p></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;"><o:p>&nbsp;</o:p></div><div style=3D"margin: 0in =
0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">Of =
course you have to ask yourself WHY? I mean, who is going to know which =
block is in your car? Who cares? Well some folks do, since I have built =
a couple 260=92s for them. To them, bragging rights that it=92s the =
original engine are important. &nbsp;Others just prefer stashing the old =
260 under the bench and building something more modern. That=92s what I =
did with both my Tigers, both sport 5-bolt 289 based =
engines.<o:p></o:p></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, =
sans-serif;"><o:p>&nbsp;</o:p></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">I just =
finished another 5-bolt 331 engine (all Ford Motorsport components this =
time) and have two more 5-bolt blocks left, then I think I=92m =
done.<o:p></o:p></div><div style=3D"margin: 0in 0in 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;">Bugz<o:p></o:p></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;">PS If you =
REALLY want a challenge I ran across a first-year 221 =
SBF=85<o:p></o:p></div></div></blockquote><blockquote =
type=3D"cite"><span>_______________________________________________</span>=
<br><span></span><br><span><a href=3D"mailto:[email-masked]" =
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