You're up around Lansing Michigan area right?Ive got a set of 243s in the garage.
Realistically, I'll probably nerd out on the various OEM options for a few months.. lolJust mill some 243/799’s throw in a truck cam from BTR with some flex fuel injectors and that 408 will rip and make more torque than a stock lb7. lol
Yep. I found this set on Marketplace. Original plan was to swap onto the LS1 in the Vette. They'll just sit on the shelf until I find a use for them.You're up around Lansing Michigan area right?
I would get a bigger set of heads... a 408 needs to breathe. I have a custom 1 off set of AFR 205s with a smaller intake valve for a 5.3L that almost flow 300 CFM. We specifically used the 205 casting because of the bore size and the small combustion chamber. Mine are 61cc but it's not 87 octane freindly combo. Unfortunately the motor cost more than the truck and for that reason alone I won't install it and drive it on the street. I know it will make an easy 500HP on the dyno.If I was to get heads I'd get some AFR LS1 mongoose 205cc or something comparable. Highly unlikely I'll get anything aftermarket. I'll trade 5k RPM above power for better 2-4k rpm power on a heavy daily vehicle
It was more rough reference point
As for cam stock on my truck is 197/207° and .467"/.497" 116lsa Going to a 212/218° and 558"/563" and 115 LSA which is a failure decent jump, of I go bigger I'll loose too much low end even with the extra displacement and crank stroke
If I install 1.8 rockers puts valve lift at ~.580-.600" which is ~243cfm with 317s, yes heads/cam are choke point.I would get a bigger set of heads... a 408 needs to breathe. I have a custom 1 off set of AFR 205s with a smaller intake valve for a 5.3L that almost flow 300 CFM. We specifically used the 205 casting because of the bore size and the small combustion chamber. Mine are 61cc but it's not 87 octane freindly combo. Unfortunately the motor cost more than the truck and for that reason alone I won't install it and drive it on the street. I know it will make an easy 500HP on the dyno.
As for the cam, the larger displacement will usually eat up some of the bigger cams since they require more air flow to feed them.
Pull the pickups glass flares off,There'd be some very odd rear fender flares on that Sub, thats for sure.
It's in Nicholasville KY I really dont need another vehicleI'm thinking dually burbs might be the next trend...
Sent from my SM-S901U using Tapatalk