I am a new C3 owner and used to a little more juice than the 200hp my 72 came with. I plan to install a crate motor but I hear there are some fitment issues with some. I'd like to hear about anyone's experiences on here.

 

I built my 400" small block. Any gen 1 crate engine will fit with the exception of clearing the hood. I'm not for sure of your power goal and intended use, but check out cnc-motorsports. Good guys with great prices. Will build the engine to meet your power goals, dyno it and ship it to you. Like I said the hood might be about the only fitment issue you have unless you go big block or ls.

 

Your going to need a taller hood for this one!!

 

Fortunately, the hood shouldn't be a problem. I am looking for modest power- 300-400hp

 

Zz383.

 

zz383... 700r4

 

Blueprint 383 with 432 HP & 460 TQ

Here's a link to my swap...
http://forums.corvetteforum.com/c3-t...int-383-a.html

 

1978 LS6, in 1978.

 

LS3 525hp GMPP crate motor

 

I replaced the 454 in my 70 coupe with a 454 crate engine built by Carolina Engines. It was a direct fit and included everything. They machined my original intake manifold to fit the new engine set up so it fits under the stock hood with no issues. The engine dyno's at 415 HP with 515 lbs of torque. Total cost was $4,500 and included a 5-year warranty. It has run great for over 5 years now and I would recommend these guys to anyone for high quality and an affordable price.

 

Excellent thread!! I was planning on a 350ci but you all have me sold on the 383ci. I was also planning on new GM but I'm not sure about forking over all of my hard earned $$$$!

 

EVERYTHING, including new headers, starter, flex plate, etc...under $5000

Got about 2000 miles on it now....freakin loving it! !!

 

Sounds reasonable to me- I'm also planning on a new tranny too. 70mph needs another gear

 

My '72 vert came with a Muncie and L48 engine, this in '95 It has been a hobby car for some years, and so in '97 I got a 355 4 bolt main truck block, which currently has L98 #113 aluminum heads on it....headers, and a highly modified LT1 induction with HEI dizzy in stock location....obvously injected for years now....roller cam/rockers.

at one point the overdrive became mandatory with the move to Florida, so in went a 700 with my stock 336 rear.....now here is the trick, that first gear in the 700 is about 3.08 or something close, and when in traffic you pull out across a street and the trans upshifts into second gear before you get 1/2 way across, it's too much of an RPM drop.....ok for heavier vehicles, but in a vette, it's a bit much....to boot the 700 requires tons of mods to the tailshaft mount/crossupport, and driveshaft has to be shorter....

I finally switched to a 200 4r much lighter, and with more manners suiting the car....you need to put in a TRANS GO shift kit.....
stock driveshaft length.....obviously the tail pipes need changed, I assume you going for headers....

 

My 700r4 shifts auto matically, but I'd rather shift it manualy.

 

You've sold me on the BP 383!!! What trans are you running?

 

A Blue Print Engine LS3/427FI. Attached is the dyno and good luck with your build

 

I most likely have the tamest of the bunch with my ATK 375 HP Aluminum Head 350 CI

http://high-performance-engines.com/...duct_Code=HP89

Edebrock Performer manifold
Quick Fuel 680
Patriot short tube headers
needed to switch to a Mini Starter

http://imagizer.imageshack.us/v2/800...0/840/bxsa.jpg

Karsten

 

A stout little th350 with a shift kit

 

How is it at 70-80 mph? I run high RPM's with my stock TH400