Working on my Demon, about to be ready to drop in engine/trans.
Looking for what oil and trans fluid to use.
‘72 Demon all steel, glass hood, stock interior.
360, .30 over 4.125 stroke crank (420 cubes)
Eddy heads, Hughes stage 2 porting, super victor gasket matched, 820 Holley.
10.5:1 Comp. Bullet hyd roller cam .249/257 @ .050 .573 lift.
904 trans, rev. valve body, PTC 3800-4000 rpm stall converter.
4.30 gear, 275/60-15 Drag radial.

Is the synthetic worth the $$?
Thanks all!

Wally.

I use Valvoline VR1 race oil and whatever brand of Type F trans fluid I can get my hands on. I used to use Mobil One synthetic motor oil, but for a while it got real hard to find...so I switched to the Valvoline. Bearings still look great w/ it, so I have kept using it.

Me too on type F and VR1

Been using VR1 engine oil and Super Tech (Walmart brand) Type F for years without any issues.

IMO, for your case NO.

The transmission fluid choice depends on the chance you could overheat it.
A mild footbrake car with medium to low stall is unlikely to overheat the trans/converter.

[Thanks all. Definitely going to use Valvoline VR-1 oil.
When I ordered my converter, the tech ar PTC said to use ATF+4 trans fluid.
Is there any special reason the converter needs ATF+4?
I am leaning towards type F as so many here use it, and if it ain’t broke, I’m not going to fix it.

Thanks everyone again!

WK

Pic for the heck of it, getting excited to drive it again!

the car looks really good!

I have used several different types of oil. I usually throw Rotella 15W40 in it when I do drag week where it will see the highest oil temps it ever sees. Its cheap to change and the 15W40 offers a good balance for on track oil pressure and been on the highway for 3 hours oil pressure(in my combo). But when I am not putting a ton of miles on it I run 5W30 to keep my oil pressure out of the moon when I am racing and the oil temp isn't that high.

For trans fluid I use wal mart Type F.

I use JR 1 synthetics. Trans life has been fantastic. The KD band in my trans has over 550runs on it. Looks like it came out of the box. Same with the engine. Bearings look good at every check. Running a mix of 5w20-30.
Doug

I dont get too excited about oils, but I only bracket race. I switched to the Valvoline Max Life synthetic that Walmart carries last year after I got tired of chasing Type F. $18.00 a gallon, on the shelf anytime I need it and so far is working fine in my glide running mid 5's in the 1/8 mile.