I have a 1980 Corvette no motor, no tranny. I am going to install a BBC under the hood. Does anybody know if this will be a direct fit or will this require mods for the motor mounts.
It was a stock automatic and I am going to convert to a manual. Any pointers?

Thanks ahead of time.

I have a 1980 Corvette no motor, no tranny. I am going to install a BBC under the hood. Does anybody know if this will be a direct fit or will this require mods for the motor mounts.
It was a stock automatic and I am going to convert to a manual. Any pointers?

Thanks ahead of time.
motormount will fit, but cooling system inadequate, as well as front coil spring for extra weight. depending on intake manifold , hood may not clear

motormount will fit, but cooling system inadequate, as well as front coil spring for extra weight. depending on intake manifold , hood may not clear
Thanks,
I hear tell of a "low profile" factory intake for C3Corvettes. Anybody else heard of this?

Thanks

Thanks,
I hear tell of a "low profile" factory intake for C3Corvettes. Anybody else heard of this?

Thanks

Can't say that I have, but good luck with that build!

Thanks,
I hear tell of a "low profile" factory intake for C3Corvettes. Anybody else heard of this?

Thanks
for big blocks? have nt heard of any there are some smallblock that clear you also can use moroso low profile air cleaner gives about 11/2 more room w/ 3 inch filter

Thanks,
I hear tell of a "low profile" factory intake for C3Corvettes. Anybody else heard of this?

Thanks

I have what the PO described as a low profile intake. I haven't investigated further. However, I did find this one in a brief search.

http://www.edelbrock.com/automotive_new/misc/tech_center/install/5000/5061.pdf

for big blocks? have nt heard of any there are some smallblock that clear you also can use moroso low profile air cleaner gives about 11/2 more room w/ 3 inch filter


My bone stock 454" 1971 Corvette has a FLAT Quadrajet intake manifold. No height at all. So flat manifolds ARE made for big blocks.

Yes they are. All big blocks with the LT1 style hoods came with a very short dual plane spreadbore manifolds on them. Putting a spreadbore holley carb on does not create a air cleaner to hood problem :thumbsup3:

Exactly what is a "dual plane" intake?

Yes they are. All big blocks with the LT1 style hoods came with a very short dual plane spreadbore manifolds on them. Putting a spreadbore holley carb on does not create a air cleaner to hood problem :thumbsup3:
yes LT1 and L88 style hoods clear easily ,however hes converting small block car to big block. i don t think the low stock smallblock hood will clear w/ stock air cleaner and he never said the new motor came from a corvette just my opinion i could be wrong and dual plane simply means the plenum is separated into two makes for better low end response and torque

Exactly what is a "dual plane" intake?

http://i125.photobucket.com/albums/p72/metalkid_01/intake-dual.jpg
Description:http://victorylibrary.com/mopar/intake-tech-c.htm#dp

http://i125.photobucket.com/albums/p72/metalkid_01/intake-dual.jpg
Description:http://victorylibrary.com/mopar/intake-tech-c.htm#dp
picture worth a thousand words

Do you fore see any problems with the length of the big block such as where the shifter will come through the "hump"? Will the stock drive shaft be the correct length?

Do you fore see any problems with the length of the big block such as where the shifter will come through the "hump"? Will the stock drive shaft be the correct length?
the trans will all be same as before unless you use different trans if you had th350 and use th350 driveshaft , mounts all fit or 4spd but th400 or 700r4 requires modification to crossmember and driveshaft as they are longer. if 4spd shifter still in same location bolts to trans

I am switching from a TH350 to a stock Borg Warner 4 speed tranny. I was just asking if the length of the big block would push the transmission back towards the rear of the car more than the small block would have. I really appreciate your feedback. I'm a greemhorn when it comes to these cars.I want things to look as stock as possible from the inside of the car.
thanks again.

I am switching from a TH350 to a stock Borg Warner 4 speed tranny. I was just asking if the length of the big block would push the transmission back towards the rear of the car more than the small block would have. I really appreciate your feedback. I'm a greemhorn when it comes to these cars.I want things to look as stock as possible from the inside of the car.
thanks again.
block lenght is not different it will fit but cooling and springs must be upgraded the clutch pedal conversion is not easy its tight in there and good luck with your project

does your car have aircon and cruise because you may not have room in the engine bay for those luxuries :burnout:

It came w/factory air that I am planning on reinstalling. I guess I assumed that it wouls fit cecause previous yeat big block Corvettes came wiyh an A/C option. Will it be tight or impossible? I guess there is always the post factory kits like the ones sold ar Eklers????

Thanks,
I hear tell of a "low profile" factory intake for C3Corvettes. Anybody else heard of this?

Thanks


Yes, my '71 454" has a FLAT intake manifold on it. And even then, the hood just barely closes.

It came w/factory air that I am planning on reinstalling. I guess I assumed that it wouls fit cecause previous yeat big block Corvettes came wiyh an A/C option. Will it be tight or impossible? I guess there is always the post factory kits like the ones sold ar Eklers????
should still work if you get the right brkts so it match you pulleys for belt alignment

Say has anybody done business with a salvage yard called Contemporary Corvette? They seem to have a lot of inventory, but do not respond very well to my e-mail request to provide written confirmation of our phone conversations. I'm not just going to send them a check. Do you guys/gals know of ant reputable Corvette salvage yards for C3 vettes?

check them out with Better Business Bureau, or use Pay Pal to purchase money is guarranteed or credit card most are covered for fraud

yes LT1 and L88 style hoods clear easily ,however hes converting small block car to big block. i don t think the low stock smallblock hood will clear w/ stock air cleaner and he never said the new motor came from a corvette just my opinion i could be wrong and dual plane simply means the plenum is separated into two makes for better low end response and torque


A big block engine needs a big block hood. I have a '68 with a 454" and a '71 with a 454", and both of them have higher hoods than the small blocks used. As my '68 has a high rise Quadrajet intake on it, it has a hood 3" higher than my low rise Quadrajet manifold big block '71 has. But the point is a big block has to have a higher hood than a small block; regardless of which intake it has on it. Because the big block engine is a taller engine. About 3" taller.

And a dual plane intake has two different planes to it's runners; a high plane and a low plane. Cylinders #1, #7, #4 and #6 use the higher plane, while cylinders #3, #5, #2, and #8 use the lower plane. The dual plane configuration helps the engine produce more low end torque and better throttle response at lower speeds.

Can I replace my 1980 hood with another year big block hood?
Thanks,

Steve

The problem is the latch. It can be made to work with a little effort. In 77 they changed the way the hood latches work- the early hoods used a pin and spring, later was a hook and loop. Last factory BB was 73(?). As I said, it IS doable, just takes some work.

:food-smiley-021:

Can I replace my 1980 hood with another year big block hood?
Thanks,

Steve
just get a new hood from Ecklers style like you want and made to fit your car

Hey guys, I just found a 1979 4 speed salvage car that I can get all of the manual transmission parts and pieces off of, including the transmission; will it work/fit my 1980? Let me know I need to move fast.

Hey guys, I just found a 1979 4 speed salvage car that I can get all of the manual transmission parts and pieces off of, including the transmission; will it work/fit my 1980? Let me know I need to move fast.
the trans ,bell hsg, mount, driveshaft all should work the pedals are slightly different but might still work

Anything you collect that you can't use can be sold/swapped/traded for something you can use.

Anything you collect that you can't use can be sold/swapped/traded for something you can use.
absolutely! throw nothing away

I bought the '79 tranny, bellhousing, shifter(Hurst) and linkage, pedals, drive shaft w/yokes, back up light switch, pressure plate and clutch linkage from the pedal to the clutch fork. I need to know where I need to weld the z bracket to the frame and where the cross shaft engine stud and cluth fork pivot stud goes. HELP
Thanks,
Steve

just get a new hood from Ecklers style like you want and made to fit your car


That's the best way to go. For about $700 to $800, you can buy a new hood that will fit your car. There are many different styles of hoods available. The L88 style hood is about 3" higher than a stock big block hood. I have an L88 style hood on my high rise 454" in my '68.

Does anybody have any information on mounting the "Z" bracket on the frame. I bought a bolt on version from Ecklers but I don't know where to mount it. I am starting with the pedal and pedal linkage this week. Need som guidance from you experienced 'vette guys.

Steve

Does anybody have any information on mounting the "Z" bracket on the frame. I bought a bolt on version from Ecklers but I don't know where to mount it. I am starting with the pedal and pedal linkage this week. Need som guidance from you experienced 'vette guys.

Steve


On my '68 big block, the center of the cross shaft is exactly 10-3/4" back from the extreme front of the steering box. As my engine is in my car, that's the only reference place I can really measure to. As the cast iron steering boxes are all the same, and as the clutch pedal's push rod has a lot of adjustment on it, that 10-3/4" dimension should be plenty close enough. I would have thought the "Z" bracket you got from Eckler's would have come with mounting instructions.

I hope this information helps you.

I'm starting this weekend. I'll keep you posted. It should be interesting.

I'm starting this weekend. I'll keep you posted. It should be interesting.
good luck should be one hell of a car now

I'm starting this weekend. I'll keep you posted. It should be interesting.


Big blocks are fun. They have an UNGODLY amount of low end torque. I've got a '68 with a 454" in it and it feels like I could use it to pull oak tree stumps.

No mounting instructions from Ecklers. It was my first Ecklers purchase; not impressed.

Steve

No mounting instructions from Ecklers. It was my first Ecklers purchase; not impressed.

Steve


That really surprises me that the bracket didn't come with some sort of mounting instructions. How do you fasten it on? Real long bolts that go clear thru the frame?

No idea! I'm thinking about welding it on.

No idea! I'm thinking about welding it on.


Keep us posted on your progress................

http://ak.webfetti.com/assets/3dani/F/473p.gif (http://sz0010.wc.mail.comcast.net/MySpace/Graphics/Transportation/Blue-Porsche-tattoo.jhtml)

If you need new front springs I have a set I bought for a 70 454. If they will work on your car I will sell them for 1/2 price ($50.00 plus shiping). They are brand new and never out of the box.

I would also recommend that you get a copy of the assembly manual. Can be a real help in finding all the parts and how the fit. I think they are pretty short money and the sell one for all C3 years.



http://bestsmileys.com/usa_flags/2.gif

Keep us posted on your progress................

I got the car, '80 Vette, up on platforms, 15" off the ground, with help from my son, wife, and neighbor. Took out the transmission cooling lines, goin' 4 speed, removed the drivers side seat and pulled the steering column after disconnecting what seemed like 1,000 wires. I labeled most of the connections on both ends for future reference. The steering column was tough to remove even after I loosened the clamp boltes. I guess it had never been out. I am starting on the pedal removal next. I am hoping to make the manual transmission pedals out of a '79 work on our '80. I have been told that there is an indention on the inside firewall where the clutch rod would have gone through had the car been originally equiped a manual transmission. I am going to fit the tranny into place as close as possible without the motor in, and cut the hole for the shifter next. I purchased a drive shaft for a manual transmission car with the other parts from a '79 Vette. I'm not sure if the drive shafts are a different length or not. If anybody has any do's or don't's for any of these task let me know.

Thanks,
Steve

No idea! I'm thinking about welding it on.

Instead of welding it directly, can you weld brackets to it to bolt it on that wat it can be removed later if need be

Exactly what is a "dual plane" intake?

Single plane has common plenum that feeds all 8 cylinders and a dual plane splits plenum into 2 to feed 4 cylinders for better low end. edelbrock 2plane air gap best for street bb but will need L-88 hood for clearance.

Sense you own a 1980 manual transmission vette, I was wondering if you know if the drive shafts are the same lengths for the automatic and manual transmissions? I am going from automatic to manual in my 1980.

Thanks,
Father/Son