[Tigers] FW: motorsport x 302 crate motor

[Ron Fraser]

Nick
 
    I'm not familiar with crate engines but maybe this will give you some
ideas.
 
Oil pressure on my 260 never drops below 40 psi.  Scuffing could be an
oiling issue.
 
Is this a roller cam?
 
Roller lifters tick a little when they start to go bad and just get louder
as they wear.  Again this could be an oiling issue.
 
Ron Fraser

-----Original Message-----
From: Tigers [mailto:tigers-bounces at autox.team.net] On Behalf Of Nick via
Tigers
Sent: Tuesday, April 14, 2015 8:40 PM
To: tigers at autox.team.net
Subject: [Tigers] FW: motorsport x 302 crate motor



 

 

From: Nick [mailto:scattt at verizon.net] 
Sent: Monday, April 13, 2015 8:03 PM
To: 'Andy Walker'
Subject: motorsport x 302 crate motor

 

 

 

I am helping a friend with a Tiger we are reassembling after 10+ years of
being off the road. We purchased a 302/340hp engine from Ford Motorsport to
install in this application. We installed the engine without difficulties
with a front sump oil pan, new pickup and right angle oil filter from
motorsports.  It has a air gap manifold, 600cfm Edelbrock  and a pertronix
dizzy. The engine started and  broke in without issues but after about seven
miles on the road it developed a knock. Dropping the oil pan we discovered
the #2 piston was scuffed around the skirt. Sent it back and Ford replaced
with another block claiming they couldn't determine what the cause was.  The
new engine we had broken in by a local speed shop and dynoed.  It put out
320 Hp which we expected.  Reinstalled the engine and after about 20 miles
on the road it developed what sounds like a lifter tapping. With great
difficulty we removed the valve covers and started the engine.  Everything
on the top end looks and feels perfect but we still have the tapping. Put
the engine back together and installed another set of exhaust headers with
copper gaskets and the proper sealer thinking we possibly could have a
cracked header or leak. The problem persists and I am afraid we may find
another scuffed piston. The oil pressure has never dropped below 20# even at
idle.

Has anyone out there experienced a similar problem with these engines of
have a suggestion as to what our issues may be. ? The people at Ford
Motorsports are scratching their heads!

 

Thanks, 

Nick Kintner

Florida

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/tigers/attachments/20150415/d7f0bc71/attachment-0001.html>