Any idea what motor this is? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LBNY_C10 · 07-16-2018, 11:41 AM

Bought this 64 c10 recently and I am looking to do a tune up, however I haven't been able to verify that this is the original motor or something put in later. I have been looking for markings on the motor but there is potentially 50 years of grime on it and it is a slow process, additionally searching google for chevy motors hasn't turned up anything that looks exactly like this... Anyone have any idea if it is a 283 or ???

looking to change the oil/filter/drain plug, plugs/wires, new air filter, battery, etc... just looking to make sure I buy the right stuff the first time!!!

New to Chevy and new to the forum excuse my inexperience!!

thank you in advance!!

Robert Haas · 07-16-2018, 12:03 PM

post a shot of the end of one of the heads.

**jayoldschool** · 07-16-2018, 12:13 PM

Air cleaner and orange block say 70s 305, 307, 350. What side dipstick?

LBNY_C10 · 07-16-2018, 01:10 PM

Quote:

Originally Posted by jayoldschool

Air cleaner and orange block say 70s 305, 307, 350. What side dipstick?

Right side dipstick

jchav62 · 07-16-2018, 02:36 PM

Definitely late 60s-70s sbc of some sort.

I see a points style distributor, accessory holes on the heads... probably 307 or 350. A safe bet to say to the guy at the parts counter, 1970 c10.
As for the air filter, take it in and have it matched up.

**The Rocknrod** · 07-16-2018, 03:41 PM

I'm diggin the transcooler.

lumpy63 · 07-16-2018, 11:18 PM

Thats actually a left hand dipstick engine. it has a spin on filter so most likely a 1968 or later. also has a long water pump, 1969 and later pass car or 1973 and later truck. Are the spark plugs 5/8 " or 13/16" early engines had 13/16" plugs. The stamped ID number is on the block pad under the alternator . The cast block number is on the drivers side of the block below the back of the drivers side head near where the trans bolts on.

**Captainfab** · 07-17-2018, 12:18 AM

What Lumpy63 said /\ /\

My guess would be a '73+ truck engine either a 305, 307, 350 or a 400. I see what looks like maybe the counterweight on the flexplate? I also see what looks like the impression of the middle freeze plug like some of the later 400's have instead of the actual freeze plug. That would make it a 400. The suffix code on the pad below the alternator will tell you exactly what it is.

SkinnyG · 07-17-2018, 01:05 PM

If it's a 400, and you bore it out, pay the extra to have it bored and honed with a torque plate.

**jayoldschool** · 07-17-2018, 02:38 PM

Damn, I totally forgot the 400! Nice call.

LBNY_C10 · 07-17-2018, 02:44 PM

I appreciate the input everyone!!! Will post up when I solve the mystery!!

Hack_Attack · 07-17-2018, 03:51 PM

I bet its a 400, 2 bolt main.

**The Rocknrod** · 07-17-2018, 04:15 PM

Quote:

Originally Posted by lumpy63

...The stamped ID number is on the block pad under the alternator . The cast block number is on the drivers side of the block below the back of the drivers side head near where the trans bolts on.

Post those babies up.

lumpy63 · 07-17-2018, 06:04 PM

Captain Fab nailed it! I can see the center freeze plug boss and if you look real close you can see the scalloped balancer. So yes it looks like a 2 bolt main 400 .Just so happens to be one of my favorite small blocks

most likely 73-74 vintage.

LBNY_C10 · 08-01-2018, 01:59 PM

After a bit of procrastination due to the heat... I took the time to take the alternator off today and found this.... after a brief search online it appears to be a 1976-1977 or 1979 400 out of a k20, 2500 or a "van"

thanks for all the help

07-16-2018, 11:41 AM	#1
LBNY_C10 Registered User Join Date: Jul 2018 Location: LBNY Posts: 4	Any idea what motor this is? Bought this 64 c10 recently and I am looking to do a tune up, however I haven't been able to verify that this is the original motor or something put in later. I have been looking for markings on the motor but there is potentially 50 years of grime on it and it is a slow process, additionally searching google for chevy motors hasn't turned up anything that looks exactly like this... Anyone have any idea if it is a 283 or ??? looking to change the oil/filter/drain plug, plugs/wires, new air filter, battery, etc... just looking to make sure I buy the right stuff the first time!!! New to Chevy and new to the forum excuse my inexperience!! thank you in advance!! Attached Images __________________ 1964 C10

07-16-2018, 12:03 PM	#2
Robert Haas Registered User Join Date: Mar 2014 Location: Salinas Ca. Posts: 625	Re: Any idea what motor this is? post a shot of the end of one of the heads.

07-16-2018, 12:13 PM	#3
jayoldschool Moderator Join Date: Dec 2012 Location: ON, Canada Posts: 2,150	Re: Any idea what motor this is? Air cleaner and orange block say 70s 305, 307, 350. What side dipstick?

07-16-2018, 02:36 PM	#5
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: Any idea what motor this is? Definitely late 60s-70s sbc of some sort. I see a points style distributor, accessory holes on the heads... probably 307 or 350. A safe bet to say to the guy at the parts counter, 1970 c10. As for the air filter, take it in and have it matched up. __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4 Last edited by jchav62; 07-16-2018 at 02:42 PM.

07-16-2018, 03:41 PM	#6
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Any idea what motor this is? I'm diggin the transcooler. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

07-16-2018, 11:18 PM	#7
lumpy63 Registered User Join Date: Apr 2016 Location: san diego ça Posts: 121	Re: Any idea what motor this is? Thats actually a left hand dipstick engine. it has a spin on filter so most likely a 1968 or later. also has a long water pump, 1969 and later pass car or 1973 and later truck. Are the spark plugs 5/8 " or 13/16" early engines had 13/16" plugs. The stamped ID number is on the block pad under the alternator . The cast block number is on the drivers side of the block below the back of the drivers side head near where the trans bolts on.

07-17-2018, 12:18 AM	#8
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Any idea what motor this is? What Lumpy63 said /\ /\ My guess would be a '73+ truck engine either a 305, 307, 350 or a 400. I see what looks like maybe the counterweight on the flexplate? I also see what looks like the impression of the middle freeze plug like some of the later 400's have instead of the actual freeze plug. That would make it a 400. The suffix code on the pad below the alternator will tell you exactly what it is. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

07-17-2018, 01:05 PM	#9
SkinnyG Registered User Join Date: Feb 2012 Location: Beautiful BC, Canada, eh?! Posts: 2,170	Re: Any idea what motor this is? If it's a 400, and you bore it out, pay the extra to have it bored and honed with a torque plate. __________________ 1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, boosted-LS 1977 Silverado: Shortboxed & dropped, potato-potato V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag Lotus Super 7 Replica: Scratch-built street-legal rollerskate

07-17-2018, 02:38 PM	#10
jayoldschool Moderator Join Date: Dec 2012 Location: ON, Canada Posts: 2,150	Re: Any idea what motor this is? Damn, I totally forgot the 400! Nice call.

07-17-2018, 02:44 PM	#11
LBNY_C10 Registered User Join Date: Jul 2018 Location: LBNY Posts: 4	Re: Any idea what motor this is? I appreciate the input everyone!!! Will post up when I solve the mystery!! __________________ 1964 C10

07-17-2018, 03:51 PM	#12
Hack_Attack Registered User Join Date: May 2017 Location: Amelia Island, Florida Posts: 43	Re: Any idea what motor this is? I bet its a 400, 2 bolt main.

07-17-2018, 06:04 PM	#14
lumpy63 Registered User Join Date: Apr 2016 Location: san diego ça Posts: 121	Re: Any idea what motor this is? Captain Fab nailed it! I can see the center freeze plug boss and if you look real close you can see the scalloped balancer. So yes it looks like a 2 bolt main 400 .Just so happens to be one of my favorite small blocks most likely 73-74 vintage.

08-01-2018, 01:59 PM	#15
LBNY_C10 Registered User Join Date: Jul 2018 Location: LBNY Posts: 4	Re: Any idea what motor this is? After a bit of procrastination due to the heat... I took the time to take the alternator off today and found this.... after a brief search online it appears to be a 1976-1977 or 1979 400 out of a k20, 2500 or a "van" thanks for all the help Attached Images __________________ 1964 C10 Last edited by LBNY_C10; 08-01-2018 at 02:09 PM.

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