Small Block Chevy

GO DAWG GO · GO DAWG GO's Garage

http://orangecounty.craigslist.org/car/353361512.html

Check this out. I have seen other Porsches with V8's. Has anyone driven one of these? I suspect they are not as fast as a good running 930 because of the weight. Interesting...

masraum · 06-26-2007, 05:32 AM

There's an amazingly long thread on this board on the hybrid cars. Believe it or not, consensus seems to be that a SBC is close to the same weight as a 930 engine. Especially when many of them these days have aluminum heads and intakes.

legion · 06-26-2007, 05:32 AM

Actually, the SBC in aluminum trim is lighter than most Porsche motors, including the 4 cylinders--and often makes double or more the horsepower/torque.

masraum · 06-26-2007, 05:38 AM

Read to your heart's content. These are by no means the only threads that you'll find if you search. They are just some of the biggies.

Glad to have a V8

Glad to have a V8

Glad to have a V8

911 V-8

LS1 911...check this out

Opinion on hybrid cars? 911/V8 ..914 V8

legion · 06-26-2007, 05:39 AM

Quote:

Originally posted by masraum
There's an amazingly long thread on this board on the hybrid cars. Believe it or not, consensus seems to be that a SBC is close to the same weight as a 930 engine. Especially when many of them these days have aluminum heads and intakes.

Yep. Once you add the radiator into the mix, your about the same weight-wise--though you have pushed some of the weight to the front of the car.

The aluminum SBCs are still lighter and smaller than all of the 944 engines, which is really amazing if you think about it.

kaisen · 06-26-2007, 05:54 AM

The all-aluminum LS series smallblocks are lighter than the turbo mills even considering the radiator, plumbing, and coolant they add to the car. Cheap reliable horsepower and mountains of torque. Weak link is certainly the transaxle.

Jim Richards · 06-26-2007, 06:03 AM

Quote:

Originally posted by legion
Actually, the SBC in aluminum trim is lighter than most Porsche motors, including the 4 cylinders--and often makes double or more the horsepower/torque.

Yep, a friend just dropped an AL SBC engine in his 951, and it was very close to the same weight as the turbocharged 4-banger he yanked out. He loves the results.

chapo · 06-26-2007, 07:02 AM

Pass anything but a smog check

legion · 06-26-2007, 07:16 AM

Quote:

Originally posted by chapo
Pass anything but a smog check

???

notfarnow · 06-26-2007, 07:39 AM

Quote:

Originally posted by Jim Richards
Yep, a friend just dropped an AL SBC engine in his 951, and it was very close to the same weight as the turbocharged 4-banger he yanked out. He loves the results.

I read somewhere that the 924 & 944 have the same engine->transmission bolt pattern as the Audi/VW 2.0 5 cylinder & volvo/VW 2.4 6 cylinder diesels. That's an engine swap that could make a cool commuter car. There's a guy on the VW diesel performance forum that got 185ft lbs out of his 5 cyl 2.0 diesel, on vegetable oil.

Hugh R · 06-26-2007, 08:36 AM

Quote:

Originally posted by legion
???

You don't have smog checks in Illinois? Cars got to pass a visible inspection before testing the vehicle emissions; meaning no modifications are allowed.

legion · 06-26-2007, 09:18 AM

Quote:

Originally posted by Hugh R
You don't have smog checks in Illinois? Cars got to pass a visible inspection before testing the vehicle emissions; meaning no modifications are allowed.

Only in the Chicago area...and vehicles roll off after 10-15 years (can't remember which). And "no modifications" isn't part of the deal. The only visible requirement is that a cat is present...and even my car meets that requirement.

kaisen · 06-26-2007, 09:20 AM

Most smog checks outside California are only pass/fail tested acceptable emissions levels for a given model year. A modern fuel injected computer controlled motor in a seventies car should pass with flying colors. Of course, in lots of areas there are no smog checks. Run whatcha brung.

chapo · 06-26-2007, 09:26 AM

In California, your engine, or car, can pass the sniffer test with flying colors, but if it is modified in any way and the parts dont have a CARB EO number, your screwed. (California Air Resources Board Executive Order) This includes air filters, headers, ignitions, etc. Makes a lot of sense, huh? Engine swaps need t o go through a DMV referee process that is a major PIA. My neighbor swapped an Audi 5 cyl. into his wasserbox synchro bus and it took forever to register. Very arbitrary process.

Howard Agency · 06-26-2007, 10:14 AM

I have one in my 914. Fortunately, it's a 73 and exempt from smog checks. I have no idea how you could pull this off in CA on a post 75 car.

And yes, it does go. Have to be careful with the 901, fore/aft weight distrib is just about the same as stock. BUT, C/G is about a foot higher than the opposed engine, so handling character is a bit different.

Tobra · Tobra's Garage

Quote:

Originally posted by Hugh R
You don't have smog checks in Illinois? Cars got to pass a visible inspection before testing the vehicle emissions; meaning no modifications are allowed.

Not exactly Hugh. If you put the motor from one car into another, you use the more restrictive rules for emissions. For example, if you have a 1975 Chevy, it does not have smog checks anymore in California, but if you put a 2005 motor in it, technically it would have to pass 2005 emmissions. So if you took a 1976 Porsche, and put a 1975 V8 motor in it, it has to pass 1976 emmissions, and have all the emmissions control equipment from the 1976 car. You go to a referee, who decides if all is kosher.