[DeTomaso] [Fwd: Cleveland Oil Modifications]

[Asa Jay Laughton]

Hi all,

This gentleman, not a member of the list, has some questions about 351C
oiling systems and modifications.  He lists the engine specs and 
targeted use first, then toward the end he asks his questions.  Can 
anyone help out?

Thanks,
Asa Jay


From: 	Della Posta, Dean <Dean.DellaPosta at garlock.com>

I have been searching the web for details, specifications, opinions &
whatever I can find on Cleveland Oil Modifications.  First let me give
you some background of what I’m currently building without going into
too much detail (sorry, it’s my nature).

- Aussie late model 351C block (I live here), 2 bolt mains
with main cap (all 5) girdle and ARP studs, hardblok (block grout) in
the bottom of the water jackets (up to the bottom of the core plugs),

- 4340 Steel Scat 3.85” stroke (393cu in with 0.030” bore)
crank, H series Clevite bearings

- Scat 6.125" H beam 4340 steel rods with forged Arias
pistons with a -10cc dish,

- Aussie designed AFD aluminium 2V 205cc intake Cleveland heads, flow
about 290/300cfm @ 0.650" lift at very high velocities, Yella Terra
Platinum shaft mounted roller rockers (no studs or guide plates needed),
ARP head studs,

- Single plane high rise intake manifold, Barry Grant Mighty Demon 750
D/P carby (might switch to an 850 if it works better with the combo?),

- Solid camshaft specs are intake and exhaust respectively, dur @ 0.050"
- 262 deg, 270 deg, Lift - 0.615", 0.645", lobe separation - 110 deg.

- 8 litre oil pan with windage tray and crank scraper, and a Mellings
High Volume oil pump with an ARP drive shaft, Moroso oil restrictor kit.
Will like to also run an oil cooler kit to help with engine cooling
seeing as I may have lost a little with the grout filling?



The car (an Aussie Falcon, weighing about 3550lbs, 4.11 rear end gears
and a stall converter to suit) will be a casual street cruiser with the
occasional 1/4 mile strip run (true street/strip). Based on similar
combos I've seen around I estimate it will make at a minimum about
500-550 hp @ flywheel at 6300-6500RPM? Anything more will be a bonus as
I won’t have to run as much n2o in my future plans (plan is for a shot
of 100-200hp using a progressive controller as I will have traction
issue with my M/T street slicks).



I have heard some pros and cons about the use of a high volume oil pump
and the stresses and excessive wear on the cam/distributor gears, others
say no issues as long as the distributor is a good quality one with
captured bearings (MSD or Crane) and the clearances are correct to the
block, what's your opinion? Or should I have stuck with a standard
volume oil pump?

What sort of main and big end clearances should I run or does that
depend on which oil pump I use?



Please also comment on the Moroso restrictor kit (not yet installed) and
any thing else that may improve the oiling issues that everybody keeps
talking about? I’ve heard about and seen some guys use all sorts of
modifications such as - external oil line, bush lifter bores, drilling
oil feed hole in the block intersecting the small oil galley below the
distributor gear, etc, etc.



I'm just at the point of doing the mock build to check deck heights and
clearances so any info would be greatly appreciated.



Best Regards,

Dean



-- 
Asa Jay Laughton, MSgt, USAFR, Retired

& Shelley Marie
Spokane, WA

1973 Pantera L 5533
[ASASCAT]

******************************
http://www.asajay.com
http://www.351c.info