Dropped a 429 into my 70 Mustang today
Spent a few hours this afternoon installing a 429 SCJ and C6 in my 70 Mustang project. This was just a practice run with a spare engine and tranny to see what issues I would have making my 547 (which is currently under build - much thanks to Lem Evans!!!!) to fit. I don't want to fix up the car and engine and end up with a bunch of surprises later. It would be a shame to finish the body work and have a nice detailed engine compartment only to have to cut it up an weld it all back together when things don't fit. The car is up on a rotisserie which made it easier - I could raise, lower it, rotate it, etc.
I Used motor mounts similar to the ones Crites sells for a 429 swap into a 67-70Mustang - these have the 429 Boss insulators with the fabricated frame mounts that lower the engine by 1 inch and back toward the firewall 1 inch. It was a royal B--ch! to install, but I had help from my 19 and 21 yo sons and that made it pleasant and worthwhile to do. I had to do some fabrication on both the insulators and frame mounts to make it work. To be honest, I got the Crites immitation frame mounts from Mustangs Unlimited (Crites said they were like 6 weeks behind schedule) and the insulators off E-bay (made in Tiawan). Surprisingly, the Crites price was much lower than the Mustangs Unlimited price, and I bet I wouldn't have had to put the Crites stuff on my milling machine to make it fit. Both places sell these motor mounts for a 429 into a 67 -70 Mustang swap.
So what are the issues? I couldn't lower this engine down to the motor mounts without removing the stock exhaust manifolds. Basically, it got stuck between the shock towers. I plan on using headers on my 547, but both Crites and Ford Powertrain Applications advertise that you can use their headers for a 429 to 70 Mustang application without modifying the shock towers. My practice run shows that clearance is tight, but I was able to remove and install spark plugs without a lot of difficulty and it looks like the radiator and fan will be tight - may have to modify the radiator attachment system on the front of the car or get a shorter water pump. I'm also now sure that I'll have to buy a set of headers from either Crites or Ford Powertrain App. to see if they fit without cutting the towers. I really have my doubts about their claims of fitting without needing to cut or modify.
The other reason I did a practice run is to see where my intake and carb will end up. I plan on running a stock shaker set up, and I want it in the same position its in when it comes from the factory. I don't want to cut up a good shaker hood due to poor planning. It was too late in the day to install a carburetor and shaker to see if the hood fits. I'll get back to you later to let you know if the shaker hood fits as is or if I need to do more modification to the motor mounts.
Did a few high fives with the boys after we finally got it in. Did I tell you it was a B--ch to install? Well, it was. Man, I love the way this engine looks in this car. It's gonna be a bad mo fo!
I'll send some pics later as well. By the way, I'm a novice at this but I figure if I keep at it things will be right in the end. If you think its crazy that I did a practice run then you know how Obsessive-Compulsive I am re details. Jeff J.