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I'm an "old school" guy when it comes to using what weight motor oils in an engine. I just traded in a 2007 Toyota RAV 4 with the V-6 motor. Used Mobil 1 and Pennzoil Platinum 5w-30 religiously in it as that's what Toyota called. Bought a new 2012 Toyota Venza today with the exact same 3.5 liter...

MGregoir & HM12460, Thanks to both of you for your quick responses. I definitely will be buying Grade 2 bolts to use as "shear pins". Thanks again.

I have an older Bush Hog rotary mower that doesn't have a clutch. Ran over a stump today & it sheared the PTO pin that goes into the Bush Hog gear box. Did what it was designed to do. Can't find a factory pin as my mower is over 30 yrs. old. Bush Hog dealer tells me to use a 3 inch long...

The complete rebuild of my 1967 Pontiac GTO 400 cu.in. motor is finally near completion. I had posted on this site back in Nov., when the project started, asking what would be a good oil to use in this older motor after it is broken in. Several posts were about "flat tappet cams" needing more...

Rhymingmechanic, I just bought one of the seals that you mentioned. It is made by BOP (Buick, Olds., Pontiac) and is a product called Viton. Supposed to be WAY better than the old rope seal. I hope it is, cause it cost $42.00! I'm rebuilding a 67' Pontiac 400 motor for a 67' GTO and everyone...

Thank both of you for the info. It's exactly what I needed and makes me feel a little better about the positives of this prduct. I think I will try it out.

Big Lots has this stuff for $1.99 for a 16 oz. bottle. Label says it has 4 times more antiwear additives than an API SL grade motor oil. Does anyone know anything about this product especially what is in it? ZDDP? If yes, what amounts? I'm considering adding this to my oil for my 67' Pontiac...

Hammer, Your're absoulutely right! I knew it was Dextron 3 I was inquiring about but my old senile fingers typed the word Mercon. My bad. I tried the site you sent but it kept coming up "page cannot be shown". Do you have a particular brand ATF that you recommend? Thanx.

I'm in the process of rebuilding my 67' GTO 400 motor. I pulled the transmission which is a GM TurboHydramatic 400, It is a PX series, 2 dimple pan, which was used on late 67' GTO's. Having the tranny gone through by a good transmission shop to do a little "beefing up". My question is: what is...

Went oil "shopping" today at Advance, Autozone, O'Reilley, and WalMart. The Delo, Delvac, Rotella T, and Pennzoil LL were in 15w-40 weights only. I inquired about a 10w-30 weight in any of these 4 specific oils and the clerks said that weight wasn't available. I'm just a little leery of using a...

Thanks everyone for all the input as it has helped in trying to find the best type "break-in" oil to use for this older motor. Now, what is the best type oil, brand & viscosity, to run in this Pontiac motor AFTER it's broken in? In other words, the daily use oil to run in a warm, Tn. climate.

I'm in the process of rebuilding a Pontiac 400 motor for my 67' GTO. Bored .30, new forged pistons, new cam, lifters, forged rods, valves, head work, etc. Should be about a 350 to 360 hp motor when finished. When I get this motor back in my car what is the best motor oil to use for the initial...

Big O Dave, Thanks for the Cloyes 12 page catalog but I didn't see a timing cover for the Pontiac that I am searching for. There is one for Chevy but none for Pontiac that I could find. If you find info. different than that pls. let me know. Thanx.

Chris, The 1969,and up,timing covers are still available through GM. The earlier yrs., like my 1967, are not available except through used parts or junk yards.

Looks like I'm going to need a timing chain/water pump cover for my 1967 Pontiac 400 motor. The casting # on the front of the timing cover is #9783130. Does anyone have one of these available for sale? Thanx.

Chris142, Thanks for the positive comment about "sleeved" cylinders. You've got 8 so why should I worry about only one! I know some local hot rodders who are drag racing their small block and big block Chevy's with sleeved cylinders without any problems and they're turning WAY more RPM's than I...

I plan to take the block, heads, and crank to the machine shop next week to have them dipped, magnafluxed, and checked for cracks. Since this motor is a numbers matching motor out of a 67' GTO convertible I'm hoping they are okay. The bore is now standard bore, the crank has been turned .10, and...

Thanks for the quick reponses and good info.

I'm in the process of rebuilding a Pontiac 400 out of a 1967 GTO. Sorry to say that one of the cylinders in the block has a pretty good grove cut in it caused by a loose pin. Does anyone know just what the max bore can be done to a Pontiac 400 motor? It's standard bore at this time but looks...

Sorry for the double post but I screwed the first one up! My own personal experience was positive in doing as you suggested. I own one of the "Sludge Monsters", a Toyota 3.0 Sienna van. I noticed sludge starting to build up at 30,000 miles. Toyota Service Mgr. suggested I try Mobil 1 5w-30 and...