I was wondering what you all tought about me swapping a 454BBC in place of the 305. Would any of you consider this. I live in El Paso TX and was wondering if I could get away with this set up as far as emmissions go. I am obsessed with Big blocks. My obssession comes from the fact that this motors are so powerful if built right. The torque is awesome! Please post your toughts before I actaully swap in the Big Block. I would greatly appreciate your views. The result from the motor swap that I am expecting 12's in 1/4 mile.

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Big 454 '86 Camaro Z28 '72 Nova w/454 BBC

 

There are at least two BBC powered cars, with four more in the construction phase, and 1 406 pontiac on this board. I think we all agree that it's a good idea. I am thinking about shoehorning my newly aquired spare 500 cad in my car, But I'm going for 11's. 12's shouldn't be any prob for a decent 454. Traction, now that's the problem

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'87 RS 402 Big Block
'92 S-10 Blazer 4X4
'77 3/4T Chevy 4X4 P/U with 500 Cadillac

 

I'm in the middle of doing this right now. Check Miles' 88 427. I don't remember the address though. Look for old posts on big block swaps. His sight has alot of great info.

As for my car, I'm looking at a very traction limited mid 12's on street tires. I don't want to run slicks until I get something bigger than the 7.5. I guess as time and money allows.

Oh yeah I forgot about Stephen's car. He's doing a big block swap right now and his car is pretty damn awesome. His sight is a MUST see. Tons of info and great pics.



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85 Berlinetta Iroc exterior Lg4 305 best e.t 14.4 street tires naturally aspirated....installing/ rebuilding 450-475 HP 454....YAHOOO!!!

 

If you can't do 12's with a big block then something is wrong. I ran high 11's with my 383, TH350 and a BW 9 bolt with 3.27 gears.
My new BBC "should" put me in the low 11's with somewhere around 550hp. The only reason I didn't build it to put me in the 10's is that I don't have a 9" diff yet and I expect to break my beefed up 10 bolt sometimes this year. One I get a 9" under the car I can always do a cam swap to get me in the 10's later.

As stated above, dropping in the BBC engine alone isn't a good idea. You'll need to work on chassis and suspension to handle all the extra power.

As for emmission, if the engine is built properly it should pass a smog test. Lots of BBC trucks still driving around that can pass. I drive my 454SS daily but don't have to get emmission tested.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
454 Big Block almost ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

 

Emissions - don't know anything about them Putting a big block in a 3d gen - most of the info you need is on my page. Let me know if you have specific questions.

Miles

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88 427 Camaro
12.18 @ 113mph 1.75 60ft

www.koolmeister.com

 

I have decided to go with the BBC! Hopefully I won't run into to much trouble fitting the engine. I am going with an after market fuel injection system(Edelbrock)through Summit. It's kind of pricey at 1,900.00 so if anyone has some better suggestions please let me know. The only thing is it will be fuel injection and not carburation. thanks in advance.

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Big 454 '86 Camaro Z28 '72 Nova w/454 BBC