305 to 350 (carb) engine and turbo 400 direct swap?
#1
305 to 350 (carb) engine and turbo 400 direct swap?
Just wondering before I take on this project. Is it a pretty much a drop in ready to go swap? I've swapped motors in older squarebody chevys but never really in a small car like this.
Is the difficulty pretty high?
Are there any changes to the motor mounts or transmission mounts?
Only thing I think that maybe the most difficult would be swapping the rear end for a dana 60 ( is that a direct swap or is fabricating required?)
If I was to get a fuel injected Camaro and pull the motor and put a carbed 350 what changes need to be made?
Can you drop the tranny and engine in at the same time without removing the front end?
What changes (if any) need to be made to the fuel system if the 350 has a mechanical fuel pump?
How long would the average person expect to complete a swap like this?
Sorry for all the questions, all help is appreciated. Thanks!
Is the difficulty pretty high?
Are there any changes to the motor mounts or transmission mounts?
Only thing I think that maybe the most difficult would be swapping the rear end for a dana 60 ( is that a direct swap or is fabricating required?)
If I was to get a fuel injected Camaro and pull the motor and put a carbed 350 what changes need to be made?
Can you drop the tranny and engine in at the same time without removing the front end?
What changes (if any) need to be made to the fuel system if the 350 has a mechanical fuel pump?
How long would the average person expect to complete a swap like this?
Sorry for all the questions, all help is appreciated. Thanks!
#2
Supreme Member
iTrader: (13)
Join Date: Dec 2002
Location: Bowdon, GA.
Posts: 2,535
Likes: 0
Received 16 Likes
on
14 Posts
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: 305 to 350 (carb) engine and turbo 400 direct swap?
As far as the engine swap goes... If 1 gen 1 sbc fits, so will all the others.. So yeah a 350 is a bolt in swap for a 305
Yes you can put in and pull out engine and trans as one unit with front end still on car. I have done it MANY times.
turbo 400 trans swap makes it alittle harder.. It will bolt up to any gen 1 sbc, it will fit the trans tunnel of the car... But the torque arm will not bolt to trans, nor will trans mount fit to stock crossmember.
When I 1st put mine together over 12 years ago I used the hurst th-400 swap/change over kit. It was like $115 and came with a new offset crossmember, and a torque arm bracket that bolted up to the th-400 tailshaft to case bolts and stock torque arm mount fits to the bracket.
Since then I have swapped to an aftermarket saddle mounted torque arm (jegster torque arm)
Also since then, many companies have came out with th-400 crossmembers, torque arm mounts and units where torque arm bolts to crossmember.
With a th-400 you will also need a conversion U joint. That adapts the stock 3RN U joint driveshaft to the th-400's 1310 U joints.
You also need the th-400's slip yoke.
EFI to carb swap can be handled a couple of ways. You can use the stock in tank elec. fuel pump and just install the $115 mallory adjustable fuel pressure reg and turn pressure down to 5 psi
Or you can remove the in tank pump and run block mounted mech. pump. If you remove pump you can replace the whole sending unit/pickup with one from an 82-85 carb'ed 305 car... Or you can just remove in tank pump and replace with a lenght of hard line the same length as the pump was.
Dana 60, ford 9" or chevy 12 bolt... If you buy an aftermarket housing/rear end made to fit the 82-92 F cars, it will be very close to bolt in swap. You may have to grind/clearance here or there depending on what torque arm you run, or you may have to change/mod parts of your brake system depending on what the car had (rear disk or drums) and what brakes you use on the aftermarket rear. And you will need another conversion U joint
Yes you can put in and pull out engine and trans as one unit with front end still on car. I have done it MANY times.
turbo 400 trans swap makes it alittle harder.. It will bolt up to any gen 1 sbc, it will fit the trans tunnel of the car... But the torque arm will not bolt to trans, nor will trans mount fit to stock crossmember.
When I 1st put mine together over 12 years ago I used the hurst th-400 swap/change over kit. It was like $115 and came with a new offset crossmember, and a torque arm bracket that bolted up to the th-400 tailshaft to case bolts and stock torque arm mount fits to the bracket.
Since then I have swapped to an aftermarket saddle mounted torque arm (jegster torque arm)
Also since then, many companies have came out with th-400 crossmembers, torque arm mounts and units where torque arm bolts to crossmember.
With a th-400 you will also need a conversion U joint. That adapts the stock 3RN U joint driveshaft to the th-400's 1310 U joints.
You also need the th-400's slip yoke.
EFI to carb swap can be handled a couple of ways. You can use the stock in tank elec. fuel pump and just install the $115 mallory adjustable fuel pressure reg and turn pressure down to 5 psi
Or you can remove the in tank pump and run block mounted mech. pump. If you remove pump you can replace the whole sending unit/pickup with one from an 82-85 carb'ed 305 car... Or you can just remove in tank pump and replace with a lenght of hard line the same length as the pump was.
Dana 60, ford 9" or chevy 12 bolt... If you buy an aftermarket housing/rear end made to fit the 82-92 F cars, it will be very close to bolt in swap. You may have to grind/clearance here or there depending on what torque arm you run, or you may have to change/mod parts of your brake system depending on what the car had (rear disk or drums) and what brakes you use on the aftermarket rear. And you will need another conversion U joint
#3
Member
iTrader: (1)
Join Date: Apr 2013
Location: Ohio
Posts: 372
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Trans Am
Engine: 305 TPI
Re: 305 to 350 (carb) engine and turbo 400 direct swap?
+1 on pulling engine and trans with the front end on. Both I have pulled that way were easier than my '93 truck.
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
03-05-2017 06:37 PM