so i was at my cousins diesel and off road performance shop today and i was talking to him and his mechanic about my truck. and i told theme i like the 460 for the power and torque but not the mpg. and then his mechanic suggested a 4bt swap he said it gets 20+mpg and can make good power/torque. and he said for me he could do it for about 5000$ with a 5 speed swap included. what is the 4bt capable of would it make 300-400 hp and a lot of torque with mods is it mod friendly and is what he is asking for the job a good price. or should i stick with the 460 and rebuild it for the hp and torque i want.
I am no expert but I think 300-400hp is on the high end for a 4bt. Its just a smaller version of the 6bt. Dont think there is as much aftermarket for it, but im not sure . Look at CO425 swap, he has way more than 5000 into his and he did all the labor himself.
They will get good mileage, I believe there is a few swaps done one this site. Just seems on the low end to get a quality swap with all new parts. Just my 2 cents.
If it's power, I think you'd be better off with the 6bt or a later model 24 valve. More aftermarket for it.
4BT is common in vehicles with limited engine bay space, which is why it's common with jeep guys. In your truck, you've got all the room in the world. Well, enough room to get yourself in trouble
Pure bread Northwest kid currently stuck in the Midwest going to school at Iowa State University Driver: 1976 F250 4x4 300/NP435/NP205 D44 4.10 front, D60 4.10 rear Project: 71 Baja Bug/1600DP/3 rib bus trans
Originally Posted by HIO Silver
Thanks for the myopic criticism Montana. You're bundle of joy.
A 4BT in "working" form would put out 110-120 HP with lots of torque. With correct gearing it could give good mileage. By no means fast or strong in a heavy towing application. Think of it as a high torque, high mileage alternative to a 300 ci Ford six.
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