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About to have a 408 W2 motor built and I'm looking for some opinions. Looking at a mill in the 530hp range for my 69 Dart.
The cam that has been suggested is approx .600 lift 252/256 flat tappet, solid. Will be running 3500-4000 stall w/3:55.

My main concern is streetability since that is what the car does 99% of the time(weekend/nice weather cruiser). Anyone have experience with a stroker small block and a cam in this range? How was it on the street?

530 hp out of a 408 w/W2's will not take anywhere near those cam duration specs. Try something a little smaller like 242/244 with .600+ on a 108 LSA should easily meet your goals and be VERY streetable. You list streetability as your main concern. J.Rob

Thanks

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What do your heads flow?

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530 hp out of a 408 w/W2's will not take anywhere near those cam duration specs. Try something a little smaller like 242/244 with .600+ on a 108 LSA should easily meet your goals and be VERY streetable. You list streetability as your main concern. J.Rob

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To continue my post above:

If all you want is a street engine, why do you want to run W2 heads? They are way too expensive (heads, offset rockers, special rocker shafts, etc) if you aren't going to utilize the flow that they offer.

My suggestion for a street engine would be 408" shortblock with 10:1 actual compression, out of the box edelbrock heads, a Comp Cams .525" solid cam, and a six pack induction. You could sell your W2s and valve gear and recoup money to buy the Edelbrocks/valve gear.

To save money, you could always throw a 750 vacuum secondary Holley on there with a modern single plane manifold.

I'd still suggest 3.91 gears, and your converter sounds good so long as it's a high quality (read: efficient) unit. Having the local hack shop "bend the fins" to increase the stall at the expense of efficiency is NOT the answer.

Naturally, you'll want to run quality headers and 2.5" exhaust.

You would be far more happy with the above combo (or one similar to it) than you would be with what you described above, in my opinion..

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To continue my post above:

If all you want is a street engine, why do you want to run W2 heads? They are way too expensive (heads, offset rockers, special rocker shafts, etc) if you aren't going to utilize the flow that they offer.

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I just had Brian at IMM motor machine bolt together a 408 street motor with W2 heads for my dart.
I went with a small solid roller that Brian recomended it is .240-.244@ .050 with .630 lift with 1.6 rocker arms.
This is a street car that is also my work car in the winter, I am also driving it to Vegas this weekend.
The motor made 552 HP at 6500RPMs. I am running a 3.73 gear, 904 trans with a 4000 stall 9.5 converter.
Looking forward to taking it to the track soon.

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I just had Brian at IMM motor machine bolt together a 408 street motor with W2 heads for my dart.
I went with a small solid roller that Brian recomended it is .240-.244@ .050 with .630 lift with 1.6 rocker arms.
This is a street car that is also my work car in the winter, I am also driving it to Vegas this weekend.
The motor made 552 HP at 6500RPMs. I am running a 3.73 gear, 904 trans with a 4000 stall 9.5 converter.
Looking forward to taking it to the track soon.

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