IA WTB 235 6-cyl head - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MJN** · 02-04-2021, 01:09 PM

Found out the head on my 235 is cracked and am looking for a good one to replace it with. Casting # 3836848, preferably close to Eastern Iowa.

**1970 CST Short Wide** · 02-06-2021, 11:57 PM

Be very careful when buying a used 235 cyl head. I’ll bet yours is cracked from the intake valve down to the exhaust valve. Very popular place for these to crack. Always have it Magnafluxed before you buy. I was a auto machinist for a 16 years and saw a LOT of them. Even fixed a few. Hope you find a good one

**MJN** · 02-07-2021, 10:24 AM

Quote:

Originally Posted by 1970 CST Short Wide

Be very careful when buying a used 235 cyl head. I’ll bet yours is cracked from the intake valve down to the exhaust valve. Very popular place for these to crack. Always have it Magnafluxed before you buy. I was a auto machinist for a 16 years and saw a LOT of them. Even fixed a few. Hope you find a good one

Yes, the machine shop said mine is cracked in each chamber and they can be fixed but I'm not sure I want to hand over the kind of cash they quoted just for welding. I agree with having it magnafluxed- however not every seller is willing to do that before selling it. I have some looking to do locally but wanted some feelers out there if anyone had one on here.

Bimus · 02-07-2021, 10:21 PM

I bought This 235 head and a 216 head from NAPA some one had dropped them off to have them checked for cracks and never came back to pick them up to ship the head I would have to build a wood box you can PM me and make me an offer .

**MJN** · 02-08-2021, 09:26 AM

Thank you- its hard to read but is that a 3836848 casting? I'm guessing there are no cracks, correct? I'll let you know if I don't find anything closer to home- shipping will be a killer.

Bimus · 02-08-2021, 01:07 PM

Casting # 3836848 no cracks estimate shipping to Minnesota with a crate $145

**MJN** · 02-08-2021, 01:16 PM

Thanks- I'll let you know- I assume shipping to Iowa would be similar cost.

**1970 CST Short Wide** · 02-08-2021, 10:50 PM

Quote:

Originally Posted by MJN

Yes, the machine shop said mine is cracked in each chamber and they can be fixed but I'm not sure I want to hand over the kind of cash they quoted just for welding. I agree with having it magnafluxed- however not every seller is willing to do that before selling it. I have some looking to do locally but wanted some feelers out there if anyone had one on here.

That fix is a hard one, I’ve done it AND it’s not welded in the since you think it is
They call it Cold weld. It’s actually a series of threaded plugs overlapping each other. Done right it works. Personally if it’s in every cly I’d pass
I would NOT buy one without being Magnafluxed

02-04-2021, 01:09 PM	#1
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	WTB 235 6-cyl head Found out the head on my 235 is cracked and am looking for a good one to replace it with. Casting # 3836848, preferably close to Eastern Iowa. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

02-06-2021, 11:57 PM	#2
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,188	Re: WTB 235 6-cyl head Be very careful when buying a used 235 cyl head. I’ll bet yours is cracked from the intake valve down to the exhaust valve. Very popular place for these to crack. Always have it Magnafluxed before you buy. I was a auto machinist for a 16 years and saw a LOT of them. Even fixed a few. Hope you find a good one __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

02-07-2021, 10:21 PM	#4
Bimus Registered User Join Date: Dec 2018 Location: Farmington NM Posts: 112	Re: WTB 235 6-cyl head I bought This 235 head and a 216 head from NAPA some one had dropped them off to have them checked for cracks and never came back to pick them up to ship the head I would have to build a wood box you can PM me and make me an offer . Attached Images

02-08-2021, 09:26 AM	#5
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	Re: WTB 235 6-cyl head Thank you- its hard to read but is that a 3836848 casting? I'm guessing there are no cracks, correct? I'll let you know if I don't find anything closer to home- shipping will be a killer. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

02-08-2021, 01:07 PM	#6
Bimus Registered User Join Date: Dec 2018 Location: Farmington NM Posts: 112	Re: WTB 235 6-cyl head Casting # 3836848 no cracks estimate shipping to Minnesota with a crate $145

02-08-2021, 01:16 PM	#7
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	Re: WTB 235 6-cyl head Thanks- I'll let you know- I assume shipping to Iowa would be similar cost. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

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