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<blockquote data-quote="ntsqd" data-source="post: 72900" data-attributes="member: 222">A well built TH350 or Ford C4 could easily handle 300 HP and weigh less. Really don't see the need for a TH400, but If that's what you then go for it.&nbsp; Do a search on block adapter plates, specifically those used to mate Buick-Olds-Pontiac engines to&nbsp; Chevy autos. There is a similar plate used to mate AMC V8's the Chevy autos too. A plate like that is what you're looking for. I suspect that you'll have to build it.A gotcha that's bitten me twice, the GM engine to trans alignment dowel pins are 1.000 inch ABOVE crank centerline, not on it. <img src="http://www.race-dezert.com/vb3/attachments/old/images/graemlins/frown.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" />You'll have to use what ever stock Toyota flexplate is available for the engine. Have someone like TCS mod the Toyota converter with&nbsp; the GM snout &amp;amp; splines. Would advise talking to them b4 investing much time or resources in the project.</blockquote>

[QUOTE="ntsqd, post: 72900, member: 222"] A well built TH350 or Ford C4 could easily handle 300 HP and weigh less. Really don't see the need for a TH400, but If that's what you then go for it. Do a search on block adapter plates, specifically those used to mate Buick-Olds-Pontiac engines to Chevy autos. There is a similar plate used to mate AMC V8's the Chevy autos too. A plate like that is what you're looking for. I suspect that you'll have to build it. A gotcha that's bitten me twice, the GM engine to trans alignment dowel pins are 1.000 inch ABOVE crank centerline, not on it. [img]http://www.race-dezert.com/vb3/attachments/old/images/graemlins/frown.gif[/img] You'll have to use what ever stock Toyota flexplate is available for the engine. Have someone like TCS mod the Toyota converter with the GM snout & splines. Would advise talking to them b4 investing much time or resources in the project. [/QUOTE]

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