4810 exhaust so if you want ramjet 350 level of performance then using it with 1.6 rockers is needed with 1. if the engine doesn't satisfy you then you already have the roller rockers if you decide to upgrade the cam and valvesprings laterĪlso in a ramjet 350 with 1.6 rockers the lift is. cardo0:thumbsup: 94 camaro Z28, GM 350 ramjet cam 14097395 using stock vlv springs, A4 BTO Level 3, Edelbrock shorties, TPIS TB with bypass, Honker CAI, 3.23 stock gears. I'd get a set of good 1/6 roller rockers and put them on the stock cam, you will get a small boost in hp and less friction in the valve train and call it a day. LT4 hot cam with LT4 springs (only 40 bucks for those springs). I don't think it would do as well as far as fuel economy and drivability since due to efi with a knock and o2 sensors can be tuned to 'ride the edge' of lean afr and timing control.Īs Far as putting a ramjet cam in a L-31 I don't think your going to get a good return on your effort and cost.
I'd expect a carbed ramjet to make about the same top end hp with carb and a good manifold. Click to expand.The l-31 with a carb manifold and a 4bbl tbi on it made 315 hp on the dyno, pace performance sold it as a crate package.
