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#1 |
Registered User
![]() Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Motor and Tranny Shop in Dallas
My 30 year old GM Goodwrench 350 SBC is starting to overheat. It's still running the TH350 3 speed so my highway speeds run at about 2800 rpm.
I think I'm ready to find a shop for motor and transmisson swap. Anyone have any recommendations in the Dallas area?
__________________
1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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#2 |
Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,699
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Re: Motor and Tranny Shop in Dallas
"starting to over heat" isn't a just cause for an engine/transmission swap unless there are more serious issues -- high oil consumption, engine internal knocks, slipping transmission or other issues... Overheating could be a symptom of a faulty thermostat, partially clogged radiator, slipping water pump belt, or faulty water pump.. All these problems are easily and relatively cheap to repair.. Unless you are just looking to install a later model (read that LS) engine why not just have the overheating problem looked at by a skilled mechanic or shop???
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#3 |
Registered User
![]() Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: Motor and Tranny Shop in Dallas
The heat issue is causing vapor lock that has progressively gotten worse. I have done several things to mitigate that, but I do need to check the radiator.
The swap is partly about the engine but also about the transmission. I'm running high rpms keeping up with Dallas traffic. This truck is a lifer for me, so I am definitely pushing this to get some more power too.
__________________
1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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#4 |
Registered User
Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
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Re: Motor and Tranny Shop in Dallas
Look for leaking water pump can you smell antifreeze in the cab that is a sign of leaking heater core
Is your truck running rough tired and smoking ? Looking for ls power upgrade |
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#5 |
Registered User
Join Date: Oct 2009
Location: Denton, Texas
Posts: 1,713
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Re: Motor and Tranny Shop in Dallas
Not sure how much this will help you as I live in Denton. I had Wayne Calvert Precision Engines rebuild my 327 for my 1968 C10. The did an excellent job and running fine 3 years later. https://www.waynecalvertengines.com/
I had Robinson Restoration Services install said 327 in the C10. They are a bit on the pricey side but they do excellent work and only work on classic car and trucks. Very knowledgable and passion about classic car and trucks. http://www.rrstexas.com/index.php |
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#6 | |
Registered User
![]() Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: Motor and Tranny Shop in Dallas
Quote:
I think I'll reach out to Robinson first to get their ideas on what my options are.
__________________
1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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#7 | ||
Registered User
![]() Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: Motor and Tranny Shop in Dallas
Quote:
Quote:
I talked to Robinson and they seemed very knowledgeable. Unfortunately, they are super busy, so they are going to call me back when they have time to even look at my truck. When Wayne rebuilt your 327, what changes did you make and what power difference did you get from the rebuild? Thanks to both of you for your advice.
__________________
1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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#8 | |
Registered User
Join Date: Oct 2009
Location: Denton, Texas
Posts: 1,713
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Re: Motor and Tranny Shop in Dallas
Quote:
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#9 |
Registered User
![]() Join Date: May 2013
Location: Coppell, Texas
Posts: 176
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Re: Motor and Tranny Shop in Dallas
Wow. That looks amazing.
Congrats.
__________________
1971 GMC C15 Sierra Grande SWB 1972 Chevy C10 Custom Deluxe LWB 2018 GMC Yukon Denali |
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