408 stroker engine build

G. G. LEVERETTE said

I have a 68, 340 block that will be stroked. The best source for stroking small blocks arew contained in a book by a Chrysler engineer. The things that instantly come to mind are the limitations of the small block HP at approximately 420HP before longevity is comprimised. Richard Ehrnberg of Mopar Action also expresses this concern and a friend gernaded a 500 HP 340, so your application appears approtiate. Eill try to find the book title and post here.

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I guess my 560Hp 360 is out to lunch...LOL!!
I've been running it for 5 years and I can tell you it's the most reliable engine I've had to date.
Took it apart to inspect things and it was a waste...so I changed the cam and carb for more HP and put it back in.
Made 560HP on my DTS and runs 10.50's in my 3350lb. duster (w/me).

Biggest problems are the oil pump inlet, or I should say pickup tube and making sure the pressure side is 1/2 and port the main cap area some.
Once you open the inlet of the oil pump to 3/4 you eliminate all oiling issues.
It's actually ridiculous how easy it is to upgrade the sb oiling system!!