my 408 stroker
Scat cast crank and Pro Comp rods, Pistons are custom RaceTecs with -23cc dish @ -.002" deck height, 10.27 static. The Edelbrock heads needed the usual guides sized and valve job corrected, and decks cut as they were not flat and a 64 Ra, so I trimmed them flat and to a 24 Ra. Ports are as cast in keeping with the budget, porting can be done later if Adam and Kevin decide they want more. Fuel was BP 92 octane with 10% Ethanol.
Camshaft is a shelf Howards HR, 235°/241° @ .050", 110° LSA, .565"/.565".
What Adam didn't mention is that he or his Dad had never built an engine or transmission before, much less rebuilt a carb. Rookies who were willing to learn and listen to advice. I selected and machined all the parts, measured clearances and degreed cam, measured for pushrods, and they did the rest of the assembly. The transmission Adam tackled by himself other than I pressed some bearings in and out for him.
I wasn't able to be there for the dyno session or it would have gone a bit differently. Pulls would have started @ 3k and rev limiters wouldn't have been set @ 5400 rpm, and I had a 825 Race Demon on hand for them that was suppose to be tested. But for a pump gas build, on actual fuel from the BP station, driving all the accessories with a serpentine belt, it made decent power.
Scat cast crank and Pro Comp rods, Pistons are custom RaceTecs with -23cc dish @ -.002" deck height, 10.27 static. The Edelbrock heads needed the usual guides sized and valve job corrected, and decks cut as they were not flat and a 64 Ra, so I trimmed them flat and to a 24 Ra. Ports are as cast in keeping with the budget, porting can be done later if Adam and Kevin decide they want more. Fuel was BP 92 octane with 10% Ethanol.
Camshaft is a shelf Howards HR, 235°/241° @ .050", 110° LSA, .565"/.565".
What Adam didn't mention is that he or his Dad had never built an engine or transmission before, much less rebuilt a carb. Rookies who were willing to learn and listen to advice. I selected and machined all the parts, measured clearances and degreed cam, measured for pushrods, and they did the rest of the assembly. The transmission Adam tackled by himself other than I pressed some bearings in and out for him.
I wasn't able to be there for the dyno session or it would have gone a bit differently. Pulls would have started @ 3k and rev limiters wouldn't have been set @ 5400 rpm, and I had a 825 Race Demon on hand for them that was suppose to be tested. But for a pump gas build, on actual fuel from the BP station, driving all the accessories with a serpentine belt, it made decent power.
