Yes, Bulltear makes a good mount kit for putting in a V8 on to the 6 crossmember, and yes Bulltear sometimes has customer support issues, mainly because he takes on more than he can handle sometimes, he's a great guy, and very Pro AMC, but like I said, he tackles too much sometimes and can't meet deadlines if you order something special. But if the engine mount kit is in stock, then you should be fine with ordering from him.
Headers I would go with Heddman. A couple years back I ordered every available header made for any AMC application, just to see what one fit my Grem the best. I'm running a TF 727 and the heddmans fit the best, including clearance around the transmission, and overall quality was good.
Yes, you'll need to get the yoke for the 727, as the 904 will not fit. Best bet is to get a driveshaft from about a 72/73 jav/amx that had the 727. this is a heavier duty shaft then what any of the small V-8/TF 904 set ups had, so it should hold up to the 401 power. Also, with that driveshaft, you'll have the proper yoke and a long enough driveshaft that you can have shortened to the correct length to meet the ford 9"
As far as the rear end yoke situation, when I had my drive shaft shortened, the driveline shop had the proper yoke end that they welded on the back end of shaft that matched the 9" rear end u-joint size.
Yes, you might want to consider going to the front springs out of a V-8 equipped grem or hornet, although I have a friend that kept his stock 6 cyl springs and it seems Ok?
I'm not sure about the 6 cyl trans crossmember, as mine was a factory v-8 set up, but you could wait till you get it in and see how far off the mount is?
Also, I think the fuel line coming from the tank is on the pass side for 6 cyl, and driver side for the factory V-8's, so you'll need to account for that.
As far as the starter: Plan on going with a mini starter ($350)... I tried getting the stock starter in with the headers for many hours and finally gave up. I know it should fit, but I could not find the secret to getting it in. even with headers unbolted and engine loose so I could move things around, it was still not happening... Maybe another 10 beers might have helped?
Hope this helps...
Bob in MN
In a message dated 1/5/2013 10:41:56 A.M. Central Standard Time, timkott@xxxxxxxxx writes:
Bulltear makes v8 conversion mounts to be used with a 6 cyl front crossmember. I have heard some bad things about their customer support but I have never dealt with them, so take that with a grain of salt.
You'll most likely need a custom or modified driveshaft depending on what you started with. Its something you'll have to figure out once the engine/trans and rear end are bolted in. also you may need a TF727 specific yoke. Though your stock one may work, I dont really know.
You'll need to modify your wiring harness slightly for starter and alternator (if i remember right), a radiator to work with v8, if you run headers certain ones dont fit well with the TF727, so you may want to do some reading on posts by BobinMN. Overall it can be a bolt in deal.
I saw a step by step swap somewhere online once, I'll see if I can find it again.
Tim
--- In mailto:BaadAssGremlins%40yahoogroups.com, "schustercj" wrote:
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> I just bought a '74 Gremlin and I want to add a 401 / 727 to it. What do I need besides a v8 cross member? Do I need the v8 trans cross member? If I go with a Ford 9" rear end what do I do for the drive shaft? Are any of these parts available after market?
>
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