ghostBuster
LVC Member
First, I'd just like to introduce myself. I'm Tim, but the LS is actually my friend Evan's. I guess you could say we both have our share of blood, sweat, and tears in this baby. Anyway, please check out the garage and tell me what you think. Now as for my question.
So I've done some research on here, and I checked out the one site Quik LS posted about the Jaguar and Lincoln motor having similar blocks, but not the top end. From what I've read its the electronics that are different and not the actual components. I've read that the Jaguar engine uses a two-state Variable Valve Timing system to switch the intake cam timing by 30°, but the Lincoln doesn't follow this. I was mainly wondering what the top end similarities could be. Because I've looked at the specifications of the 3.9L and 4.0L. The Jaguar makes more horsepower at the same rpm as the LS motor (6,100). The compression (10.8) is the same, as well as the bore x stroke (86 x 86). So its come to my curiousity where the extra 29 horses are coming from. So then I check the displacement in cc, and the Lincoln is measure at 3,933 cc and the Jaguar is 3,996 cc. Where are those cc coming from? Just a slight size difference in the bore and stroke? Like down to the hundredths of an inch? And if so, I wonder if those parts can be mated with the block of the Lincoln.
At first, I was curious about the heads, and intake manifold from the jaguar but I don't think its the top end that is helping the Jaguar put up more power than the Lincoln. If anyone has more information on the camshafts, and the heads I want to know more. But it is my guess that the timing and tuning is different so they wouldn't work on the Lincoln block.
Thanks for any info,
Timma'
So I've done some research on here, and I checked out the one site Quik LS posted about the Jaguar and Lincoln motor having similar blocks, but not the top end. From what I've read its the electronics that are different and not the actual components. I've read that the Jaguar engine uses a two-state Variable Valve Timing system to switch the intake cam timing by 30°, but the Lincoln doesn't follow this. I was mainly wondering what the top end similarities could be. Because I've looked at the specifications of the 3.9L and 4.0L. The Jaguar makes more horsepower at the same rpm as the LS motor (6,100). The compression (10.8) is the same, as well as the bore x stroke (86 x 86). So its come to my curiousity where the extra 29 horses are coming from. So then I check the displacement in cc, and the Lincoln is measure at 3,933 cc and the Jaguar is 3,996 cc. Where are those cc coming from? Just a slight size difference in the bore and stroke? Like down to the hundredths of an inch? And if so, I wonder if those parts can be mated with the block of the Lincoln.
At first, I was curious about the heads, and intake manifold from the jaguar but I don't think its the top end that is helping the Jaguar put up more power than the Lincoln. If anyone has more information on the camshafts, and the heads I want to know more. But it is my guess that the timing and tuning is different so they wouldn't work on the Lincoln block.
Thanks for any info,
Timma'
