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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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#48742 08/07/2005 5:58 AM | Joined: Dec 2002 Posts: 127 Wrench Fetcher | | Wrench Fetcher Joined: Dec 2002 Posts: 127 | I have a 1954 chevy 1/2 ton with the original 235 engine in it. I have never had any problems with the engine and it is a very strong and dependable engine. I want to get the most horsepower out of it by rebuilding it and and adding performance parts!! I am new with this and want any information that i can get on tips to rebuild the engine, what performance parts to add and machine work to be done for the highest performance at a reasonable cost! any help would be greatly appreciated!!! Thanks | | |
#48743 08/07/2005 11:24 AM | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Get Chevrolet Inline Six-Cylinder Power Manual by Leo Santucci. Available online. Join Inliners Int'l. www.Inliners.org Contact Jean Weigt @ [email protected]Don't expect "reasonable cost" when going for performance on an inline Chevy 6. Find a machine shop with olds guys who are experienced at rebuilding these engines. Better yet send it out to one of the custom rebuilders. Young guys and 95% of the shops don't know jack at rebuilding these, so don't get in a hurry and do lots of homework. There are some really good (much better than me)guys in here so ask lots of questions and Good Luck. | | |
#48744 08/08/2005 12:01 AM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Santucci's book is written for the late model sixes, not the old 235. Your best improvement is to get a 261. But, the 235 will do since you have it. Full race cam Cast Fenton headers New intake and carbs, dual Holley Webers are a decent setup Electronic ignition Balance the engine Shave and port the head, 848 head is highest compression. I'm sure I missed something. Here's some shot's of my friends 261, it's around 250 hp. http://myoldtruck.com/gallery/showimage.php?i=2660&c=500&userid=238
Fred
52 3600
69 C-10
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#48745 08/08/2005 4:39 PM | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Yes, Santucci's book is written for the next generation of inlines but it contains a world of useful information that anyone building a Chevy 6 ought to be aware of. | | |
#48746 08/08/2005 11:06 PM | Joined: Jan 2000 Posts: 1,586 Extreme Gabster | | Extreme Gabster Joined: Jan 2000 Posts: 1,586 | 250 hp from a 261? Leo Sanducci started drag racing with a 235 then a 261,Leo said to me, an all out drag 261 ,not even remotely streetable,very narrow power band, puts out 270 hp at 6000 rpm.Fred, I think your friend needs to write a book on 261's  | | |
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