LSX swap into 3rd gen

[Orange Terror]

I still have a flat tappet solid lifter drane saturday night special sbc cam for my 80 that I was gonna put in it a few years ago. Its like a .580 lift and long duration, I don't remember exactly, but the powerband is 4200-7500 rpms if memory serves. Anyway, if I ever do end up using it now I know.

[Orange Terror]

thats a big argument between people using the syn on an older engine.. i always use standard oil till i know its running healthy then switch to syn or syn blend after that... if it does have something wrong... like a bad cam..lol you dont want it to wear out with the raw efficiency that synthetic will give ya ha ha... not sure if it would make it worse or better in that case

I've always been told that you want to run conventional oil on any motor for the first couple thousand miles because most synthetics protect so well that the rings won't wear in enough to properly seat. Then you switch to synthetic.

[wezeles]

most new cars off the line come with syn in them now and they say to use nothing but... but that was the common practice while synthetics first came on the market... i still say atleast let it brake in before switching... but i dont think it would really effect ring brake in too much most newer motors dont have alot of internal parts that wear out like older flat tappets... besides the rings the only place that has friction is the bearings.. roller lifters and rockers and everything else are desinged to never "brake in" and after a couple thousands rpms of the motor your rings and bearings are pretty much set anyways to were they need to be... nothing on a newer motor really applies to an older motor these days besides to add gas... and soon enough im sure that will change too...lol

[MrMojoRisin681]

The oil thing was discussed on TAC.
http://www.transamcountry.com/forum/...ic.php?t=21278

They changed the oil so it wouldn't wear out the catalytic converters.

[GETGONE]

I've always been told that you want to run conventional oil on any motor for the first couple thousand miles because most synthetics protect so well that the rings won't wear in enough to properly seat. Then you switch to synthetic.

I was told this as well by an engineer/engine builder friend of my dad after he rebuilt a motor for me(DOHC HO Quad 4). On my Camaro I changed oil at 500 miles(even though it suppposedly had synthetic from the factory) and put in Pennzoil. Changed again at 3000 with Pennzoil then changed to Mobil 1 at 6000 miles. My car doesn't use a drop of oil, unlike many LS1's out there.