348-409 help please... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevy409 · 03-05-2001, 12:31 PM

My 409 (or maybe 348) is confusing me more each day. Can anyone help me tell if I have a 348 or 409? The suffix codes on the block end in TF, the block has an X on the front driverside, and the RH exhaust manifold is 3743306. Most of the signs just given would indicate a 348 (I think, not sure about the manifold though) but then I noticed the dipstick is on the passengerside which would indicate it's a 409, right? The engine came from a 1965 C-80. Any help is appreciated.

ImpalaSS · 03-05-2001, 03:16 PM

its a 61-64 truck 220HP 348....

------------------
www.xframeimpala.com

68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350

Chevy409 · 03-06-2001, 08:59 AM

Even though I got it from a 65? Jeeze, just so I don't make the mistake again, how can you tell? Thanks

ImpalaSS · 03-06-2001, 01:30 PM

i looked up the suffix code....... at bobs 409 page... http://members.spree.com/entertainme...age_index.html
lots of 348/409 info there!

------------------
www.xframeimpala.com

68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350

Chevy409 · 03-06-2001, 04:29 PM

Checked out the engine today and the block casting is 3798962... I went to Bobs 409 Page and he has this series liseted both in the 348 and 409 categories, the 348's being different years than the 409. My engine is a 1965, are you sure I have the 220hp 348 still? Thanks for all the help.

ImpalaSS · 03-06-2001, 07:06 PM

i am not 100% postive but thats just what your suffix code came out as....

------------------
www.xframeimpala.com

68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350

Chevy409 · 03-06-2001, 08:36 PM

Alright. Hey, have you had any experience with the truck motors or know how they hold up and what they're good for? Thanks again.

ImpalaSS · 03-06-2001, 11:34 PM

sorry but ive never had the privlge of owning a w block engine....

might want to email bob..... he probaly knows most everything there is to know about 348/409s

------------------
www.xframeimpala.com

68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350

Chevy409 · 03-07-2001, 05:31 PM

Thank you very much ImplalaSS, not many on this board are as helpful. I'll let you know the more I learn about my big block.

ImpalaSS · 03-08-2001, 02:41 AM

no problem! i just go to everyboard and help if i can

good luck

------------------
www.xframeimpala.com

68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350

03-05-2001, 12:31 PM	#1
Chevy409 Giddy up giddy up... Join Date: Feb 2001 Location: US Posts: 483	348-409 help please... My 409 (or maybe 348) is confusing me more each day. Can anyone help me tell if I have a 348 or 409? The suffix codes on the block end in TF, the block has an X on the front driverside, and the RH exhaust manifold is 3743306. Most of the signs just given would indicate a 348 (I think, not sure about the manifold though) but then I noticed the dipstick is on the passengerside which would indicate it's a 409, right? The engine came from a 1965 C-80. Any help is appreciated. __________________ 72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site...

03-06-2001, 08:59 AM	#3
Chevy409 Giddy up giddy up... Join Date: Feb 2001 Location: US Posts: 483	Even though I got it from a 65? Jeeze, just so I don't make the mistake again, how can you tell? Thanks __________________ 72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site...

03-06-2001, 04:29 PM	#5
Chevy409 Giddy up giddy up... Join Date: Feb 2001 Location: US Posts: 483	Checked out the engine today and the block casting is 3798962... I went to Bobs 409 Page and he has this series liseted both in the 348 and 409 categories, the 348's being different years than the 409. My engine is a 1965, are you sure I have the 220hp 348 still? Thanks for all the help. __________________ 72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site...

03-06-2001, 08:36 PM	#7
Chevy409 Giddy up giddy up... Join Date: Feb 2001 Location: US Posts: 483	Alright. Hey, have you had any experience with the truck motors or know how they hold up and what they're good for? Thanks again. __________________ 72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site...

03-07-2001, 05:31 PM	#9
Chevy409 Giddy up giddy up... Join Date: Feb 2001 Location: US Posts: 483	Thank you very much ImplalaSS, not many on this board are as helpful. I'll let you know the more I learn about my big block. __________________ 72 with 69 grille and custom 73-87 stepside. BIG BLOCK 409, SM465, NP205, 3/4 axles slung under a 5" lift, 3"bodylift, 112" frame, and 35inch Pro Comp X-terrains... "BUILT NOT BOUGHT" Here's the site...

03-05-2001, 03:16 PM	#2
ImpalaSS Registered User Join Date: Jul 2001 Location: Aromas CA Posts: 0	its a 61-64 truck 220HP 348.... ------------------ www.xframeimpala.com 68 4x4 short fleetside deluxe cab 327 air 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350

03-06-2001, 01:30 PM	#4
ImpalaSS Registered User Join Date: Jul 2001 Location: Aromas CA Posts: 0	i looked up the suffix code....... at bobs 409 page... http://members.spree.com/entertainme...age_index.html lots of 348/409 info there! ------------------ www.xframeimpala.com 68 4x4 short fleetside deluxe cab 327 air 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350

03-06-2001, 07:06 PM	#6
ImpalaSS Registered User Join Date: Jul 2001 Location: Aromas CA Posts: 0	i am not 100% postive but thats just what your suffix code came out as.... ------------------ www.xframeimpala.com 68 4x4 short fleetside deluxe cab 327 air 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350

03-06-2001, 11:34 PM	#8
ImpalaSS Registered User Join Date: Jul 2001 Location: Aromas CA Posts: 0	sorry but ive never had the privlge of owning a w block engine.... might want to email bob..... he probaly knows most everything there is to know about 348/409s ------------------ www.xframeimpala.com 68 4x4 short fleetside deluxe cab 327 air 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350

03-08-2001, 02:41 AM	#10
ImpalaSS Registered User Join Date: Jul 2001 Location: Aromas CA Posts: 0	no problem! i just go to everyboard and help if i can good luck ------------------ www.xframeimpala.com 68 4x4 short fleetside deluxe cab 327 air 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350

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