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This topic has come up several times. I have a fair number of friends =
who own speed shops and are great high performance engine builders. The =
consensus among all of them is to not do this unless you have a crank =
made with narrower journals to create a big end to journal side =
clearance of no more that .006=E2=80=9D. The idea with this and why all =
manufactures use close side clearance is to create a healthy dose of oil =
spray onto the cylinders, pistons and cam shaft. If you use the chevy =
rod on a standard Triumph journal you have a side clearance of over =
.100=E2=80=9D and all the spray just directs horizontally which does not =
help a thing. I have yet to find any engine spec that lists anything =
over .010=E2=80=9D in all my 70+ years.
=20
My opinion and I=E2=80=99m sticking to it!
=20
Steve Yott
=20
From: Fot <fot-bounces@autox.team.net> On Behalf Of Lorne Fritz via Fot
Sent: Thursday, November 2, 2023 3:13 PM
To: fot@autox.team.net
Subject: [Fot] Chevy rods/Moldex crank
=20
Hi, Could anybody tell me what rods you are using on a Moldex crank that =
is sized for a Chevy rod. This is for a TR3/4 engine. Pat number, size =
or application would help. Thanks in advance. Lorne
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class=3DWordSection1><p class=3DMsoNormal>This topic has come up several =
times.=C2=A0 I have a fair number of friends who own speed shops and are =
great high performance engine builders.=C2=A0 The consensus among all of =
them is to not do this unless you have a crank made with narrower =
journals to create a big end to journal side clearance of no more that =
.006=E2=80=9D.=C2=A0 The idea with this and why all manufactures use =
close side clearance is to create a healthy dose of oil spray onto the =
cylinders, pistons and cam shaft.=C2=A0 If you use the chevy rod on a =
standard Triumph journal you have a side clearance of over .100=E2=80=9D =
and all the spray just directs horizontally which does not help a =
thing.=C2=A0 I have yet to find any engine spec that lists anything over =
.010=E2=80=9D in all my 70+ years.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>My opinion =
and I=E2=80=99m sticking to it!<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Steve =
Yott<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Fot =
<fot-bounces@autox.team.net> <b>On Behalf Of </b>Lorne Fritz via =
Fot<br><b>Sent:</b> Thursday, November 2, 2023 3:13 PM<br><b>To:</b> =
fot@autox.team.net<br><b>Subject:</b> [Fot] Chevy rods/Moldex =
crank<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>Hi, =
Could anybody tell me what rods you are using on a Moldex crank that is =
sized for a Chevy rod. This is for a TR3/4 engine. Pat =
number, size or application would help. Thanks in =
advance. Lorne<o:p></o:p></p></div></div></body></html>
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