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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
Regarding differences between Thriftmaster 235 and Loadmaster 235:
The Loadmaster had:
1. exhaust valve rotators
2. exhaust valves were made of XCR alloy
As Mike posted above, these minor "internal" differences resulted in no higher power (but, perhaps a longer-wearing Loadmaster head?).
There was about a 10% performance increase in 1955-2nd 235s compared to 1955-1st 235s (beside the difference in the water pump locations in/on the blocks). And, there was a 1st-2nd difference in the valve cover, if the engines did not have the PCV set up.
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