I want to get rid of my knocking 307 and drop in a chevy 350. I have the universal belhousing 200-4r. What all does this entail? I know a lot of you will hate the idea, but i cannot find an olds motor within 100 miles of my location. So i just want to pick up a cheap chevy 350 and deal with it!
Swapping The 307
- Thread starter jay-rod2489
- Start date
- Status
jay-rod2489 said:
Sellout!!! whatever floats your boat...on OP we told u it will be much easier to drop in a 350/403 Olds... a chevy will require you to change the frame pads....and exhaust....and just about everything else... its up to you....
You will have a fairly easy time with that 455.
Make sure you use all of your 307 pulleys and accessories, you will only need longer belts because the 455 has a wider/taller block. You may need to use a 307 water pump, depending on the length of yours, to make the pulleys line up.
Your old 307 motor mounts will work great. If you're on a budget, use a Buick V6 torque converter for your transmission. For a 455 it produces between 1800 and 2000 rpm stall. Sort of a budget "Saturday Night Special!"
Good luck with your swap and let us know how it turns out!
Make sure you use all of your 307 pulleys and accessories, you will only need longer belts because the 455 has a wider/taller block. You may need to use a 307 water pump, depending on the length of yours, to make the pulleys line up.
Your old 307 motor mounts will work great. If you're on a budget, use a Buick V6 torque converter for your transmission. For a 455 it produces between 1800 and 2000 rpm stall. Sort of a budget "Saturday Night Special!"
Good luck with your swap and let us know how it turns out!
The biggest problem will be the accessory brackets. In the 1960s and 70s, Olds brackets were designed to fit both the small block and big block. The 307 brackets are unfortunately only designed to fit the small block. You can modify them to fit the taller deck 455, but this will require some welding. The water pump, pulleys, and brackets must be used as a matched set. The water pumps come in three different lengths with the longest ones being used on A/C and HD cooling cars. Finally, use the 307 motor and frame mounts with the 455.
- Status
Similar threads
