nemesis500548

Wow, I'm relieved to see good power and fast times without having to convert to a solid rear axle. I'm about to embark on a 500HP build and was afraid a semi-stock rear end just wouldn't hold up. But seeing what's posted hear (and some nice wheelstand pics) I think I'll be just fine.

Nah, I'm still set on a ford v8. I want to thank everybody for their input. It's been really helpful. Now all I need is some dinero. And a car worth putting it in.

Here goes nothin. Anybody know a reputable place they can recommend that will do a complete build up of a hybrid z from start to finish? I typically work 60 hours a week, so I can't do it (hell I barely have time to cut the grass). I'm not too concerned with cost, I'd pay top dollar to get my dream car. It's either this or the new Shelby GT500. I figure if I'm gonna spend $50K or better it might as well be on the perfect ride, or sacrifice waiting in line to get a GT500. I'm looking to cram a stroked 351 into a 240Z with custom rear end, frame, suspension, and redo the entire interior.

I ain't skeered to use no aftermarket block. Since I'm in the habit of dropping wads of cash into this car, why not. Has anyone already checked to see if a modular engine will fit? I know they're bigger, but whether by an inch or a foot I need to know for sure. I wanted to go with EFI, but a carb is soooo much easier (you don't need a 4 year degree in computer programming to tune a carb). I don't want to use a big block because with all the hacking I'm going to be doing to make this thing more stable, I don't want to have to worry about cutting fender wells and firewalls. Guys, let me say this, I ain't afraid to spend money on what I want, no matter how much. If I'm going to do this I'm going all the way. No junkyard parts, no potentially weaker stock components, no skimping anywhere. So if I have to spend an extra $2,000 on just one part that will make my car better, safer, faster, stronger, I won't hesitate. After all, why else do I go to work? It certainly ain't because I enjoy it or because I enjoy the company of my co-workers. By the way, sorry I don't check in that often. My work schedule is psycotic and I don't really have a life outside of it. For example, I just got back from a 1 week road trip to do a job out of town, am off for today, go back to work tomorrow, and won't have another day off for at least another week. So bear with me if I don't reply right away.

Sorry, should have specified. I meant longevity of the block. Like Tomscoupe said I'm going to stroking this thing anyway, so stock internals are out of the question. I'd rather pay a little more now and make it bulletproof, than skimp here and there and have it die on me (been there, done that, got the T-shirt). But still, which would stand up better to being stroked and putting out 500 HP day in and day out? And as far as physical size goes, will a 5.4 still fit? By the way, I appreciate all of the turbo and supercharger guys enthusiasm, but like I said, I want this to be all motor, no artificial atmosphere. Furthermore, how much stroke would I need to easily and reliably attain my 500 HP benchmark? I've seen guys online selling 351s bored and stroked to 454 cu in. But will 383 be enough?

OK, I'm looking to make 500 HP. I'm asessing my options on a stroked 351 (to ~ 454 cu), a stroked 4.6, or a stroked 5.4. Before everyone throws the save your wallet bible at me, I realize that 351s are everywhere and can be done for about 1/3 the cost. But they have also been done to death:beatdeadh , just like the chevy 350. My main concern is driveability and longevity, because who wants to spend 5-10K on something you're going to break in a year or two. I don't want to use any power adders, NOS is just plain lame, and why spend a lot of money to build a strong block and then spend another 5k on a roots supercharger. Yes a 351 will be cheaper and easier, but money isn't that big of an issue for me (I pissed off 10K souping up my 240Z with forged pistons, ARP rod bolts, fully balanced, racing cam, racing ignition, triple Weber carbs, and probably some other crap I don't wish to remember). How do all 3 motors compare in size, as this is obviosly an issue. Weight doesn't matter because, well the car itself could be used as a kite anyway, so 200 lbs difference in motor weight ain't gonna bother me. You can call me crazy:bonk: , but I like the idea of the 3 valve DOHC 5.4L (Over Head Cam, just like my motor:wink: ) but is it as strong as a 351? Which would make the power the easiest? Oh, and don't worry about the car being able to take it. It will be equipped with full length frame rails, triangular strut braces, sub frame connectors, ladder bar in the rear, and a custom length 9" solid axle rear end. Chevy god I love these things .....

My target is 500 HP/ 500 LB torque, with mostly street use and occasional track. When I presented this to my local shop they suggested fabbing up an entire separate frame and mounting the car to the frame. While sounding good in theory, I'm concerned what this will do to ride height and clearance, as one of the benefits of a 240Z is it's very low to the ground. Also, this will be very expensive, like 8 to 10 grand. So will full length frame rails and tower braces be enough to keep all four tires on the ground? I'm not really concerned with time or money, but why waste it if you don't have to right.