Thread: 410 stroker 390

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i recently purchased a 1967 fairlane gt. it currently has a 289 in it, but i am opting to go with a big block. at first i was thinking of using the 390gt engine but after a little research decided that it wouldn't be too hard to use the 428 crank and make the 390 a 410. here is where i run into trouble. i understand that the 427 heads provide the best airflow but have trouble with valve clearance because of the 4.05 in bore. i've heard that the 390 gt heads are a good replacement for airflow and clearance in the vehicle for headers. is this true? what heads were originally used on the 410 and were they decent? also, what would be a good intake manifold? i don't want to sound like i have no original ideas. just looking for some guidance.

Pretty much all of the iron heads can be made to run well with a little work. Bigger CJ size valves will work fine with a cyl bore notch. Easy to do. Some port work if you can swing it will complement them. You do want to use a set of heads that will have the bolt pattern you need for headers in your Fairlane. I think the Fairlane used the 14 bolt pattern. The Edelbrock heads are a nice upgrade and flow pretty well out of the box. It really boils down to your budget. Also what engine you decide to purchase or if your buying piece by piece. As far as intakes there are some nice choices. You basic Edelbrock RPM is a good choice but I like the Blue Thunder intakes. Were you thing of using a 1x4 or 2x4? Dove also has some very nice castings that are close in price to some of the Blue Thunders....

G.

i was thinking of either going supercharger or 2x4. so those edelbrock flow better than the gt heads? also, i forgot to ask. i can't seem to find which connnecting rods to use. the long or short?

Short rods for the 390 3.78 and 428 3.98 stroke crank. Out of the box I'd have to say the Edel's have the advantage over the GT heads. Again with port and valve work both can be made to run very well. The Edels will have the better results here also. Here is a site to compare some flow ratings http://users.erols.com/srweiss/tablehdc.htm

hope the link works...G.

FFR428,

i just want to say thanks. you took the time to give me reference pages and everything. i know who to come ask if i have anymore questions. thanks.

Glad to help and good luck with your project.

G.

g,

i ordered the book that you had mentioned on one of the other forums "how to rebuild big block fords". i got it off ebay for five bucks and i'm just waiting for it to come in. sounds like it will have everything i'll need according to what i've read about it. good looking out.

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