BLK,97,T/A,M-6

i am beginning a build. I want to stuff a 4" crank in a 30 over lt1 block, with a solid roller and afr 210's or 227's. Would a ported stock intake with lt4 knock sensors be ok? Or will it retard the **** out of the timing?

i want to build the nastiest streetable motor, but i think the solid roller and 227 race heads may be too much for the street. I think if I keep the duration down i will be ok but im not sure.

ss.slp.ls1

iTrader: (36)

If you are going that far into your build, I'd consider topping off your engine with a single plane and a 4-hole throttle body. That's what I would do.
I have see such a set up with a custom CAI fit under a stock hood. If any clearancing was needed, I don't know.

BLK,97,T/A,M-6

I know the stock intake will leave a substantial amount of power on the table, and it will probably be replaced down the road when the chassis mods catch up to the motor. Then i may throw a carb and a huge bottle at it.

but for now i want to keep it as much LT-1 as possible. To me LT1 designates reverse cooling, sequential point fuel injection, an opti, and the cam driven water pump ( or ewp ). But this is a whole new discussion.

A20SVT00

iTrader: (13)

you go for it everthing is possible

BLK,97,T/A,M-6

anyone else?

Tony Shepherd

iTrader: (4)

Will a stock ported intake work on a solid roller setup.............yes. Head and cam choice is important here. Keep the duration low to keep the power band around 3800-7000. You will be leaving power on the table though.

For a street car I would choose the AFR 210 Eliminator heads and a fully ported, cut, welded stock intake with 58mm throttle body. Top that off with a cam around the 235/245 range in duration and of course your complimenting bolt-ons.

If you are building more of a track car and a single plane is in your budget you will have better results. Then you can go with the larger heads, larger cam........etc. If you go too big plan on spending cash on a aftermarket ECU so you can spin past 7200 rpms.

If you pick the right parts and have a good tuner you will be happy either way you go. Be ready to spend some money if you go single plane.

Good luck!

z28rob18

iTrader: (7)

my plans are to use a ported stock lt4 intake with a monoblade ontop of a hefty solid roller with 220cc trickflows. i know the intake will hurt but itll still work

Speed Density

iTrader: (38)

An LT1 single plane just went for $500 on ebay.