350 swap to 455 what needs to change?
#1
350 swap to 455 what needs to change?
i found a core 455 needs a complete rebuild and i was wondering my car has a 350 in it right now and i put eibach lowering springs on it my first question is will the 455 squash those springs?
also what else would need to be changed over
thanks for the help in advance
~shak
also what else would need to be changed over
thanks for the help in advance
~shak
#2
i found a core 455 needs a complete rebuild and i was wondering my car has a 350 in it right now and i put eibach lowering springs on it my first question is will the 455 squash those springs?
also what else would need to be changed over
thanks for the help in advance
~shak
also what else would need to be changed over
thanks for the help in advance
~shak
All the accessory brackets of that vintage are designed to fit both big and small blocks, usually through the use of two different sets of holes where necessary. You'll need big block exhaust manifolds or headers and you'll want a high torque starter, but everything else is the same.
#4
#9
Olds motors all have the same basic external geometry and hard points. Chevy motors are completely different. Yes, the Cutlass frame is the same as a Chevelle, but you'll need all the Chevy brackets, accessory mounting hardware, trans, exhaust, etc, etc.
You'll also need a different forum, since few here are in favor of Chebby swaps.
#10
Just did this change on my Vista. It was no problem, but I used non notched vanle covers, and it is tight by the AC cover, and I bumped it, and put a small crack in it, so be carefull. I had to also put a spacer on the powerstearing bracket. Also I put a 4 core radiator in.
#11
i found a core 455 needs a complete rebuild and i was wondering my car has a 350 in it right now and i put eibach lowering springs on it my first question is will the 455 squash those springs?
also what else would need to be changed over
thanks for the help in advance
~shak
also what else would need to be changed over
thanks for the help in advance
~shak
i have a 55 cu olds in my car and r-400 trans work real good i had to drop my car 2'' the 455 is lighter thin the 371 you can see it on the forum pic of my 57
super eigthy eight
#13
Nope.
Olds motors all have the same basic external geometry and hard points. Chevy motors are completely different. Yes, the Cutlass frame is the same as a Chevelle, but you'll need all the Chevy brackets, accessory mounting hardware, trans, exhaust, etc, etc.
You'll also need a different forum, since few here are in favor of Chebby swaps.
Olds motors all have the same basic external geometry and hard points. Chevy motors are completely different. Yes, the Cutlass frame is the same as a Chevelle, but you'll need all the Chevy brackets, accessory mounting hardware, trans, exhaust, etc, etc.
You'll also need a different forum, since few here are in favor of Chebby swaps.
#14
Same thing for the 350s from each division.
#15
Let's all remember that in the 1960s and 70s, each GM division had their own unique engine designs. The Buick 455, Chevy 454, Olds 455, and Pontiac 455 are all completely different designs with different bore/stroke, different castings, and nothing interchangeable (except the Delco distributor cap). A casual observation shows that the Buick has a front-mounted distributor, the Pontiac has a separate valley pan with raised intake, and the Chevy has a different bellhousing bolt pattern. All four makes have different motor mounts as well. Since the A-body cars were sold by each of the four makes, the frame has pre-drilled holes for these mounts, but the actual brackets are different.
Same thing for the 350s from each division.
Same thing for the 350s from each division.
#16
#17
Just did this change on my Vista. It was no problem, but I used non notched vanle covers, and it is tight by the AC cover, and I bumped it, and put a small crack in it, so be carefull. I had to also put a spacer on the powerstearing bracket. Also I put a 4 core radiator in.
i replaced my cutlass's 2 row with a 4 row also lol
#18
Just did this change on my Vista. It was no problem, but I used non notched vanle covers, and it is tight by the AC cover, and I bumped it, and put a small crack in it, so be carefull. I had to also put a spacer on the powerstearing bracket. Also I put a 4 core radiator in.
#19
Texasred, yes I remember you . The Vista I had there is the one I put the 455 in. Also back to the other post, I used non notched valve covers both sides, no problem , for fit, other than I said before, I did hit the AC box and put a crack, but That could off been pervented, if we were more carefull, also probably should of put the heater control valve in after, would off helped a little also.
#21
ive actually spoken to a couple of people around town and they talked me out of swapping the 455 in
they said it was just be more trouble then pleasure for a person of my age on my budget and i agreeded with them
it makes sense with a nice cam an edelbrock carb and intake i should be happy heck all i really want out of the car is just for it to be a nice sport around town that can brun some rubber haha
so im just gonna stick with the 350 until im finacially set to do the swap right and not have to rig anything
they said it was just be more trouble then pleasure for a person of my age on my budget and i agreeded with them
it makes sense with a nice cam an edelbrock carb and intake i should be happy heck all i really want out of the car is just for it to be a nice sport around town that can brun some rubber haha
so im just gonna stick with the 350 until im finacially set to do the swap right and not have to rig anything
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delta881972
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January 2nd, 2009 06:54 AM