RSX302 Future--Engine Poll...

[RSX302]

I like to think of it as the better way to build a 5.3. The bigger bore improves breathing and the longer rods combined with the shorter stroke reduces the acceleration and deceleration forces the piston/rods see, along with a decrease in the side loads that are seen by the cylinder walls.

Ken

I love "Big Bores" shorter stroke engines. They are so to run.

I was entertaining a normally aspirated all Aluminum Big Block.. 4.500 x 3.760 (478ci) until the cash hit me...I would still dig it!

[RSX302]

There used to be a local here that had a turbo Boss 302 in a Tiger with fender flares, it looked more like a Cobra than a Sunbeam Tiger.

I just think a Torino is too cool because you don't see many and then none are Pro-touring (sorry to someone if they have done one)

American iron from the 1960's and 70's is always at a disadvantage on SCCA auto-x due to their size, most of the courses at done by a person with a Golf, S2000, or a Miata. If you find a course set up by a Corvette driver then real fun with big car is had.

Another home for that Ford, how about modifing one of the Factory Five GTMs.

Before the Camaro I was checking out the Ultima GTR and GT40 kits.

I dig the GTM, but it's off the vette plateform...not to say it couldn't be changed.

I'm kinda liking the 33 Hot Rod....

[compos mentis]

I'm kinda liking the 33 Hot Rod....

Agreed.

[RSX302]

I'd leave that Ford motor right where it is. Worry about it if and when you decide to sell the car! Everywhere in the car building hobby guys stick those lumps known as SBC's in anything and everything and no one says boo. But put a Ford or Mopar somewhere and they all get their panties in a wad.
I love the fact that you dared to be different. Quit worrying about it and keep having fun. And for those that don't like it

AS for sticking that motor in a Tiger with big wheels, I had one back in the 70's and it was unbeatable in Autocross back then. The problem is even a clapped out Tiger is gonna cost a small fortune now.

I was previously thinking of doing just that and that's why I rebuilt the Ford, but, there is a lot of work to putting it back in the car. Now is a good time as any to swap out and reduce my labor. If it was still in the car and running, it would have stayed a while longer. But I broke it and here we are..LOL

[ArtosDracon]

If you're gonna go BBC then go BIG, ~640 is the biggest I think I've seen before, you could figure out 604ci and it would just be like a pair of 302s, lol!

[T_Raven]

As much as I like the Ford engine in there, since you are concerned about resale value, I voted go LS. It makes no sense to build a small block anymore.

[compos mentis]

If LS is the type of motor you decide on I'd wait till you find a great deal on a LS7. I think it's the best choice for resale too. Lots of cachet with those motors it seems. No mystery/KIS principle.

[RSX302]

Photoshop with no stripe..

[Kenova]

I love "Big Bores" shorter stroke engines. They are so to run.

I was entertaining a normally aspirated all Aluminum Big Block.. 4.500 x 3.760 (478ci) until the cash hit me...I would still dig it!

OH YEAH!! That would make you pitch a tent!

Ken

[72NovaSS]

Photoshop with no stripe..

Thats Baddddddddddd

[93Polo]

Carl, you do have a way with words...LOL

As much as I would like to use an LS2 or 3 aluminum block, I'm hearing the downside to them is the stock cylinder sleeves above 600hp. Drops 30+hp not to mention major blowby. I hate blowby!

The LSx seems to be excessive for what I'm doing. I'm all for putting the money where it needs to be..but?

What about the LQ9 block? ($800new) Would it be better then the stock sleeves in the aluminum blocks at 700-800hp?

Set-up the LQ9 with forged parts (4.00x3.622 =364ci) at 8.8 or 9:1cr and 10psi non intercooled boost. With the LS3/L92 heads, this combo should yield a minimum 700hp/600tq.. (which is over 100 more tq then I had with the Ford) Get Texas Speeds LS3/L92 heads and 800hp is had at 7000rpm.

I would run a LS6, LS2, or LQ4/LQ9 block. The area between the bores does get thin past a 4" bore and head gaskets are the weak link on LS motors due to the 4 bolt heads.

Plenty of LS6 blocks are running 700+rwhp with Forced Induction on a stock crank. I would also lean towards aftermarket heads for the thicker deck which will help keep the head gasket from going which are only available with catherdral ports now. The exhaust ports on the LS3/L92 heads also tend not keep up with the intake port as well requiring more exhaust duration.

[RSX302]

I would run a LS6, LS2, or LQ4/LQ9 block. The area between the bores does get thin past a 4" bore and head gaskets are the weak link on LS motors due to the 4 bolt heads.

Plenty of LS6 blocks are running 700+rwhp with Forced Induction on a stock crank. I would also lean towards aftermarket heads for the thicker deck which will help keep the head gasket from going which are only available with catherdral ports now. The exhaust ports on the LS3/L92 heads also tend not keep up with the intake port as well requiring more exhaust duration.

What's the difference with the stock LS6 block sleeves vs any of the others?

I'm finding that all the stock LS blocks are capable of holding high hp, but at the cost of sleeve expansion and blowby.

I'm also catching the hint with the stock heads. I'm thinking AFR,Allpro...etc will be necessary.

Since the Ford is 10 bolt, I'm use to the sealing issue..My 302 uses 1/2" studs, Cometic MLS gasket and Permatex spray head sealer. No issues what so ever at 750-800hp. All surfaces are better than 15ra. I found this was key to the seal.

Thx for the info!

[coolwelder62]

How about a 440 wegde mopar.

[srh3trinity]

I am a Chevy guy, but Coolwelder's idea is pretty funny. Probably not going to help your resale value. I am liking this World block that allows you to use SBC internals with the top end from an LSX. That would allow you to go after a whole different bore/stroke combos and be strong enough for FI. It is however and iron block motor. http://www.worldcastings.com/product...ron-block.html

[twosaturns]

isn't it true that LS heads bolt on to a SBF? just do that, throw on a custom runner manifold or carb intake and tell everyone it's a hybrid!
or, howabout a GM 3.6 V6 w/ a monster turbo hanging off the front. stock w/o turbo is over 300hp. set it way back, good weight distribution.
just somethjing different; on this site anyways, it seems everyones got a 1st gen camaro w/ an LS.

[RSX302]

isn't it true that LS heads bolt on to a SBF? just do that, throw on a custom runner manifold or carb intake and tell everyone it's a hybrid!
or, howabout a GM 3.6 V6 w/ a monster turbo hanging off the front. stock w/o turbo is over 300hp. set it way back, good weight distribution.
just somethjing different; on this site anyways, it seems everyones got a 1st gen camaro w/ an LS.

They look to be the same bolt pattern..It's funny how GM used some of Ford tech. DOH!

Head water ports are different...with I'm sure other issues.

The exhaust port spacing is the same between the Ford and LS so I could try and use the turbo manifolds that I have with an adapter. (I think someone already mentioned that?)

I need to find someone with a spare LS engine laying around to do a test fit.....

I got it...Bones Fab!
He's got a old one sittng in his shop...I'm calling you tomorrow Jim!

[RSX302]

How about a 440 wegde mopar.

Well..I think the car has had enough morfing for its life..LOL

At least the Ford 9" Rear end was accepted over the years. That's staying!

[RSX302]

isn't it true that LS heads bolt on to a SBF? just do that, throw on a custom runner manifold or carb intake and tell everyone it's a hybrid!
or, howabout a GM 3.6 V6 w/ a monster turbo hanging off the front. stock w/o turbo is over 300hp. set it way back, good weight distribution.
just somethjing different; on this site anyways, it seems everyones got a 1st gen camaro w/ an LS.

Ya know those turbo V6's are stout! To bad I'm not a fan of how they sound...

Gotta have that all American V8 rumble

[Payton King]

on the 18 degree motor?

[RSX302]

on the 18 degree motor?

Got it...Thx