well this depends if you want to keep the as close as original such as date codes matching your cars numbers , if that's the case then your job got a lot harder. if you want to put in a replacement engine then decide what size you want if your car is a true gtx it came from the factory that year with 3 choices the 440 4 bbl the 440 6 pack or the 426 hemi check the vin number the 5th digit in the vin will be a letter it will be either the letter R the letter U the letter V the other first 4 letters and numbers in the vin will be RS23 so anyway swapmeets sometimes turn up a good find junkyards might have one buried in it but they seem to be drying up on the older cars ,check the mopar webring online , or look for a old new yorker or imperial 60,s to 70,s the low deck 383 and 400 will also bolt into a big block car. they are out there you just got to dig a little.
2942 1971 gtx's were made
All GTX's produced had the 440 engine.
Grand Touring Xpress
The GTX code is in the serial number, you will have to find out what all the letters mean in your code to find out if it's real, I believe year one has a plymouth parts catalog that will have the codes in it and how to decifer them.
about 1,800 RPM.
no, the scamp is not the same size car as a GTX and would never fit.
212
go to manheimgold.com.
The GTX came with a 440 CID 4bbl. 375 HP V-8. Only option was a 426 CID Hemi V-8 of 425 HP.
They never made a road runner GTX, it's either a road runner or it's a GTX. That's a GTX
Plymouth GTX
One can purchase a Plymouth GTX on the website eBay, dependent on the model year and the distance it has already traveled the vehicle can cost between $8000 to $25000.