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| | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Anybody know the correct replacement oil filter for the gmc 270 ? The truck is a 3 ton 450 series.
Thanks | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | One can plumb in a full flow filter into GM 228-302 blocks, makes for a good, modern set-up. Look around here or Inliners web site.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
If you are going to use a full-flow filter on 228/248/270/302 GMC engines that have not been converted for full-flow filtration, should you put a restriction in the inflow line to the filter (maybe put in the hose-to-filter-head fitting a washer with a 1/8" opening/restriction)?
I think that is what has been recommended when a full-flow filter is used on standard 216/235 bocks and on pre-1958 261 block?
Troy, are you looking for the filter unit/assembly, or are you looking for the filter cartridge?
| | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Thanks guys for getting back... Tim, at this point I'm just looking to just do a oil change to see if this ol 270 will start. I am just needing the filter size I guess.
Maybe once I know the motor is ok I can upgrade to the full flow system.
Thanks again
Troy | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Troy,
What year 270?
Original filter unit?
WIX 51001 maybe? - but this listed as a by-pass filter (1961)
Fram CH200PL maybe? - but this is listed as a full-flow filter (1962)
Can you post a photo of your filter canister and of your cartridge (and the cartridge's dimensions)?
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | The 3-ton probably has the big filter. The 51001 is for the smaller filter like on a 235.
Seems like there was a discussion about these GMC filters recently on oldGMCtrucks.com. You need to sign up over there anyway if you have an old GMC. Sign up and do a search.
Come to think of it, it may be on the main site (not the discussion forums)at old GMCs. Check that out too.
| | | | | Joined: Dec 2002 Posts: 2,549 'Bolter | | 'Bolter Joined: Dec 2002 Posts: 2,549 | It would have originally had a "AC" S-2 oil filter on it if installed as a Dealer Accessory. 11 5/8" inches tall, by 5"in. wide. Check out the Tech. section of this website under oil filters. That's what's on my '52 470 series COE with 302 engine. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | spanky, Would would a full-flow filter unit work OK on that engine? http://www.oldgmctrucks.com/page0286.html | | | | | Joined: Dec 2002 Posts: 2,549 'Bolter | | 'Bolter Joined: Dec 2002 Posts: 2,549 | Don't know for sure Tim. I always keep everything on my trucks stock original. I posted a photo of it just now over on the oldgmctrucks website. Big Truck Grease Pit. | | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Thanks guys for the guidance, I will have to pull it off yet. I aint got that far, but hope to soon..... I will check out the other site too. I've kinda browsed it but not their forum's yet..... I'm making progress... Put a hot battery in it and it turned over very strongly..... I will get a few more things done and fire it up ! Thanks again  | | | | | Joined: Jul 2004 Posts: 2,988 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 2,988 | If it's been sitting for a long time, DO NOT try and start it with the gas that's in the tank. Either drain it and clean the tank, or else rig up a temporary tank until you can. You don't want to fill your engine and carb with old varnish. | | | | | Joined: Jun 2012 Posts: 166 'Bolter | | 'Bolter Joined: Jun 2012 Posts: 166 | Thanks Rich, I agree with you. I hope to drain it maybe today I appreciate it | | | | | Joined: Jan 2008 Posts: 4,962 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,962 | If you have the small filter, a Fram C100 will work. If you have the large filter I think a Fleetguard LF504 will work. These engines ran 75 years with bypass filters. Drilling and plumbing for a full flow filter doesn't gain a whole lot in my opinion. A full flow filter was not an option on a 270. You have to drill into the oil galley and then return to the oil galley. | | |
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