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Joined: Apr 2009
Posts: 34
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Apr 2009
Posts: 34 |
Would a 1960 261 ci fit in a 46 Fleetline without too much trouble? Would I need a "short" water pump like I have read is used when doing a 235 ci install? Would the orig 46 radiator have enough capacity for the 261? How much heavier is a 261 compared to a 216? I want to stay with the orig car trans and have the vehicle stock in appearance but with an up-graded drive train and higher speed rear. Not sure if I'll go with a higher(3.55)ring/pinion in the stock rear(which would let me keep torque tube)or replace whole rear with another higher ratio. What ratio would be ideal? Any advice would be appreciated. Thanks, Ken
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The 261 is the same demensions as a 235.....which is the same demensions and weight as a 216 (by a few pounds). The "short" 235 water pump is necessary. Use the origninal flywheel etc. if staying with a 6 volt system.
If the radiator is as new it will cool a 261 for passenger car use. Must be clean.
The 3.55 axle ratio is ideal for a 261.
Last edited by Chev Nut; 04/15/09 06:30 PM.
Gene Schneider
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Joined: Apr 2009
Posts: 34
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Apr 2009
Posts: 34 |
I'm working with a passenger vehicle. I see what you're getting at with the PG torque tube and rear carrier. Do you mean to say the PG carrier will install in the 46 rear housing with no problems? Considering the 46 has a 116" wheelbase and a 50-54 has 115" won't there be a problem with the torque tube and drive shaft being too short or didn't the length change? What are your thoughts on a rear end ratio less than 3.55. Not necessary? I wouldn't be doing a whole lot of highway driving with the car but once in a while. I guess you have to consider and compare that they were driven on highways at 50-60 mph back when they were everyday transportation with the 216 and 4.11 rear.
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The torque tubes are the same length. Its more or less a bolt-in conversion.
Gene Schneider
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Joined: Mar 2009
Posts: 885
ChatMaster - 750
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ChatMaster - 750
Joined: Mar 2009
Posts: 885 |
CHEVGENE! Thanks for your response to that question. This is why VCCA is the only route to go! Lots of great people here to help us out. My 48 has a 62 235 in it and was wanting to change rear end ratio to get rpm down and the PG swap would be easier than changing ring gear and pinion. Gives me more fodder to chew on.
Jim.
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
KenK, May I ask why you started 2 more new topics for 46 engine swap (46 engine swap 2 and 46 engine swap 3) rather than replying to the original thread (46 engine swap) about a 46 engine swap?
Life's a long winding trail, love Jesus and ride a good horse!
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Joined: Nov 2001
Posts: 5,906 Likes: 8
Former ChatMaster ChatMaster - 5,000
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Former ChatMaster ChatMaster - 5,000
Joined: Nov 2001
Posts: 5,906 Likes: 8 |
I combined them all into one.
Bill Barker
Previous VCCA CHAT Administrator
(VCCA Member: 9802)
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