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#1 |
Registered User
Join Date: Aug 2007
Location: Columbia South Carolina
Posts: 53
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454???? yes? no?
A friend has a 87 dually with a 454 in it! he just call me, told me that he wants to sell it??? along with the tranny, computer, everything to make it work! So i need an advice!!!! should I do it?? I think the tranny is a TH400??? thanks!!! :
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#2 |
Account Suspended
![]() Join Date: Jul 2007
Location: Wichita KS
Posts: 1,599
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Re: 454???? yes? no?
Hell ya gas milage is over rated compaired to raw power. Go for it.
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#3 |
The Older Generation
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Location: Montezuma, Iowa
Posts: 25,516
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Re: 454???? yes? no?
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Tell you what... I like driving the 454 powered '67 short fleet more than any vehicle I own and I own some pretty neat stuff.... (I think)... ![]() LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#4 |
Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Re: 454???? yes? no?
agree'd pull that 454 and do it up nice.
then beat on ricers all night long. ![]()
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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#5 |
Registered User
Join Date: Aug 2007
Location: Columbia South Carolina
Posts: 53
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Re: 454???? yes? no?
so what should I do? just fresh up the 454? what's the best way to do it??
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#6 |
Zappaphile!
Join Date: Apr 2007
Location: Los Banos, California
Posts: 228
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Re: 454???? yes? no?
Those are always a tough one to figure out.
The catalist for me has always been to make sure I know what I am getting into, and making sure everyone involved knows the swapping of parts/cash/labor is fair enough to keep the crabby ***** machine of the group happy. Good Luck..
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1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son |
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#7 |
Account Suspended
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Location: Wichita KS
Posts: 1,599
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Re: 454???? yes? no?
I may be wrong but I would get it in and see how you like the preformance it has now before a rebuild this will give you an idea of how much power to add for your tastes. Just change out any leaking seals and have some fun.
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#8 |
Registered User
Join Date: Aug 2007
Location: Columbia South Carolina
Posts: 53
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Re: 454???? yes? no?
well so far I like the opinions!!! seems like I'll be doing it!!! he lets me use a space on his garage and also help me with it... all I need is lots of CORONAS!!!! THANKS... I let you all know what happen!!!
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#9 | |
The Older Generation
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Location: Montezuma, Iowa
Posts: 25,516
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Re: 454???? yes? no?
Quote:
![]() LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#10 |
Registered User
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Location: KINGSPORT,TN.
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Re: 454???? yes? no?
1987 is the smog low hp 454
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I BELIEVE IN JOHN 3:16 |
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#11 |
Registered User
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Location: Sacramento, CA
Posts: 1,970
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Re: 454???? yes? no?
That motor is only rated at 230 hp and 385 ft lbs or torque.
If you're getting the motor right ($), I would say it's a good starting point.
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72 Cheyenne SWB Fleet Nut & bolt frame off in progress...99.9999% - supercharged 383 - 4 wheel discs - relocated fuel tank - ![]() My Build Thread |
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#12 |
Senior Member
Join Date: Mar 2007
Location: VANCOUVER ISLAND, B.C., Canada
Posts: 1,602
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Re: 454???? yes? no?
Last year for the LS4 454 cu. in the Corvette was 1974. It was putting out 270 hp. Back in 1960 a Corvette with a 283 cu. fuelie set up was putting out an advertised 315 hp. If it was equiped with a 283 cu. dual 2 x 4 set up it was putting out 270 hp. My point is for all the cubes a 454 has it lacks the ponies.
esll. ![]()
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Tomorrow is for doing today's stuff. ![]() ************************************* This truck has just the right amount of energy for me! ![]() Author: Warren Lake .... (member) Last edited by EAST SIDE LOW LIFE; 09-25-2007 at 03:01 AM. |
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#13 |
Account Suspended
Join Date: Aug 2007
Location: Austin, Tx
Posts: 81
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Re: 454???? yes? no?
Don't waste your time/ money on the stock heads on the motor. Find some good early 70's closed or semi open chamber oval port heads. Rectangular ports are overkill unless it is a dedicted rce motor and give up too much low end torque. This change alone will bump your compression ratio up and add around 50-75 hp. A stock rebuild w/ flat top pistons, stock crank, RV style torque cam, headers, dual plane intake, 750 cfm and headers will make a strong 400-450 hp motor. If it needs a crank, look into a stroker to take it out to a 496. it is not much more $$$ than a stock 454 crank.
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#14 |
Registered User
![]() Join Date: Aug 2005
Location: Hillsboro Oregon
Posts: 6,449
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Re: 454???? yes? no?
You can pick up a pair of 781 heads cheap (relatively speaking). I have them on my 476 (454 + 0.100") and love them. Here's a link to a discussion about them.
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#16 |
Registered User
Join Date: Apr 2006
Location: Saskatoon
Posts: 100
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Re: 454???? yes? no?
DOIT!!!! I have a 454 in the garage thats been waiting for me for about 3 years now, its only got 1 more year to wait before im done school. I cant wait.
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-- Tall, Dark and Handsome... Or so my mother says ![]() -- There is no fate, but the fate we make. |
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#17 |
Registered User
Join Date: Aug 2007
Location: Rochester, NY USA
Posts: 70
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Re: 454???? yes? no?
The hp comparison stated above to the 1960s engines is a naive one.
Do a search on gross vs net horsepower to learn why the numbers are so different. Also, the fact that 87 was the lowest rated horsepower for a 454 is a moot point. A 1987 454 is going to respond to the same mods as an earlier 454. Change the heads, remove all the smog crap (if legal in your area) and watch your hp numbers double. And lastly, horsepower is a greatly overblown figure in a truck. Torque is far more valuable than horsepower in moving the weight in question. Let the flame wars begin! |
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#18 |
Official Site Guitar Shredder
Join Date: May 2006
Location: Oz
Posts: 3,955
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Re: 454???? yes? no?
i ve always heard that if you got the torque, the horse power is already there, id say got for it....even though im a smallblock guy.
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#19 |
Java Mechanic
Join Date: Jun 2005
Location: Martinsburg, WV
Posts: 6,764
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Re: 454???? yes? no?
There is no replacement for displacement.
Everything that works for little engines works for big engines, only more so. They do cost a bit more and eat like horses, but then you're not building a Honda here.
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Keith 11 Lincoln MKT -- Momma's wagon ![]() 13 G37xS -- middle age crazy car 68 C20 Fleetside -- RIP Decorating the whole town up at a cost of $27 .... |
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#20 |
Registered User
Join Date: Dec 2006
Location: Trinidad, Colorado
Posts: 642
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Re: 454???? yes? no?
YUP!!!!! I'll sell you some closed chambered 702's that'll wake that engine up big time!
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69' 3/4 4X4 470ci BBC 700 HP.... ![]() D60/14bolt 205/465 http://profile.myspace.com/index.cfm...ndid=127691959 |
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#21 |
Registered User
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Location: Sacramento, CA
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Re: 454???? yes? no?
tclaremont is right about that comparison. Somewhere in the early 70's they made that switch from "gross' to "net" numbers. I'm not totally sure (someone correct me if I'm wrong) but I believe that "gross" was at the flywheel with no accessories on the motor and "net" was with accessories (alternators, waterpump, fans, etc...).
As said above, torque is what makes a street driven vehicle fun and big blocks are notorious for that. As also said above, you can make many improvements to that motor to get more out of it, but if you plan on sticking with the factory TBI setup, you will be limited. I would be pretty certain the tranny is a 400 given that the combo is coming out of a dually. I'd jump all over it if the price is right!
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72 Cheyenne SWB Fleet Nut & bolt frame off in progress...99.9999% - supercharged 383 - 4 wheel discs - relocated fuel tank - ![]() My Build Thread Last edited by SactoJim; 09-24-2007 at 08:16 PM. |
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#22 |
Registered User
Join Date: Aug 2007
Location: Columbia South Carolina
Posts: 53
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Re: 454???? yes? no?
And you guys think that same 400 tranny should be aight????
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#23 |
Senior Member
Join Date: Mar 2007
Location: VANCOUVER ISLAND, B.C., Canada
Posts: 1,602
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Re: 454???? yes? no?
The rating used was not pitting a 454 with a net hp rating with a 283 that has a gross hp. rating. They were both gross hp. ratings. Also I was quoting factory ratings and factory motors with no changes not doing this or doing that or swapping the heads for this or that. You can build a monster out of almost anything if you want to spend the time, money and do the modifications needed.
esll. ![]() Please note: I said ADVERTISED hp. ratings by GM. No mention of gross or net hp. ratings by the General to be found. To be fair let's go back a few years to 1972. A Corvette with a 454 still was rated at 270 hp. Net hp. ratings didn't come into effect until the 70's but as far as I know after 1972. Has anyone had the opportunity to drive a 454 big block 72' Vette? How about a fulie Vette? All tech stuff aside this would answer any doubts what the little mouse is capable of!
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Tomorrow is for doing today's stuff. ![]() ************************************* This truck has just the right amount of energy for me! ![]() Author: Warren Lake .... (member) Last edited by EAST SIDE LOW LIFE; 09-25-2007 at 10:41 AM. |
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#24 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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Re: 454???? yes? no?
I put a 454 out of a 1989 1 ton into my 69 K20. I got rid of the tbi, added a carb and Weiand intake (designed for the peanut port heads), a cam with low end torque in mind and am very happy.
![]() Those peanut port heads produce great torque down low which is where my heavy truck needs it. Sure better heads would be nice, but I sure get a big smile on my face when I nail the skinny pedal!
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 Last edited by Yukon Jack; 09-25-2007 at 04:58 PM. |
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