383/406ci weights
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,708
Likes: 25
From: Sorrento Italy
383/406ci weights
hi, what would be the weight difference, if any, between a 383 and a 406ci engines? i'm starting soon the tranplant of a chevy badass engine into my tvr griffith (which weights, included an alu 5 ltr V8 engine, about 2.300 lbs...), the car has a T5 5 speeds trans and a full tubular chassis, so this gonna be a top flyer
Last edited by panic; Jul 11, 2006 at 10:39 AM.
Pro
Joined: Jun 2005
Posts: 660
Likes: 4
From: Fredericksburg VA
Short answer is Minimal. Both are small blocks one starts as 400 cubic inches the other starts as 350 cubic inches. The 400 has Siamese cylinder walls and some can run slightly warmer. I don’t want to say hotter because that may make some think overheating.
C6 the C5 of tomorrow
Joined: Nov 2000
Posts: 6,665
Likes: 2
From: Twin Cities Minnesota
Nothing measureable. The 400 has bigger holes, but also a bigger crank.
If the 400 runs warmer it's only because it's making more power, NOt because of the siamesed clyinders rolleyes:
If the 400 runs warmer it's only because it's making more power, NOt because of the siamesed clyinders rolleyes:
Melting Slicks
Joined: Mar 2005
Posts: 2,838
Likes: 10
From: Austin TX
I disagree,..a 400 bored out .030 with RPMs, compression, and HP will run warmer than it's 383 couterpart. A stock 400 will run warmer than it's 350 counterpart. The 400 cid eqpipped cars back in the day were equipped with bigger radiators and steam holes in the heads to counter the difference in heat it made.
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
If you have the money and really want to compete in the Death Race 2006 you have to go bigger!
Your doing the same things as Ford did 38 or so years ago. they got rid of the little 5 liter motors and went with the 427 ci in both the Cobra and the GT-40s
Very few cars on the road can take on light weight vehicles with 600 HP and over 500 Ft pounds of TQ.
The 427 or 434's from this place would do it!
http://www.badasscars.com/engineprices/chevsb.html
Your doing the same things as Ford did 38 or so years ago. they got rid of the little 5 liter motors and went with the 427 ci in both the Cobra and the GT-40s
Very few cars on the road can take on light weight vehicles with 600 HP and over 500 Ft pounds of TQ.
The 427 or 434's from this place would do it!
http://www.badasscars.com/engineprices/chevsb.html
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
Originally Posted by gkull
oh its worse than that. This guy is halarious.
Guarantee and warranty Info: We guarantee ALL of our engines to be "within spec" and free from defects caused by workmanship. All of our engines have a Limited, 12 month "out of chassis" warranty against defects and/or workmanship.
Do NOT expect to buy a performance or race engine and receive an unconditional full warranty. The guarantee on performance and race engines ONLY covers defects in workmanship and machining. Believe us, it isn't our first day building engines, we know what we're doing.
Just so you know, other companies claim they offer engines with warranties but understand this, Absolutely NO engine builder or parts manufacturer will honor a warranty if that engine was used for racing purposes, if it was over revved, had full throttle pulls, if it was over heated, was run out of oil, had incorrect timing (pinging) or insufficient octane among many other things. Don't expect to buy that GM "crate motor" that comes with a "warranty" and be able to have it replace if (and when) it breaks if they find that you raced it, ran it out of oil, over heated it, blew the head gaskets out, over revved it, broke the side of a piston off due to detonation which is caused by incorrect timing or insufficient octane or any other reason they feel isn't worthy of covering under that "warranty". You also can't go buy a brand new car or truck with a full "bumper to bumper warranty" and expect them to replace or fix your engine if you damaged it by doing the things I just listed, and they won't, so don't kid yourself. They're not stupid! If that were true, people like me would go buy a nice new truck with a 50,000 mile warranty and the last 5,000 miles of that warranty, I'd blow that engine sky high and get a brand new one for nothing! It doesn't work that way. You don't think a $40,000 NASCAR engine come with a warranty do you? Or how about $80,000 Top fuel engine?... nope! Sometimes those engines don't even make it past the starting line... that's just the nature of the beast... **** happens with performance and racing engines and if you wanna play... you've got to be prepared to pay.
I can wipe-out ANY engine in about 15 seconds or less, regardless of how well it was built. Steel, aluminum, and iron can only take so much abuse and stress and if you exceed that line... kiss that engine good-by, it's over. So, do not expect to buy an engine from us, or ANY other supplier, and get a warranty that covers abuse, neglect or stupidity. If your engine breaks or fails, and it was caused by something done here at our shop, we will replace what broke or failed. We stand behind our engines, but if it breaks because of neglect, abuse or just plain taking it beyond its capabilities... you're on your own... no warranty coverage what so ever.
Think of it like this; if you rip the wrist pin out of a brand new Arias or JE piston, will the manufacturer replace it or fix the damage it caused to your engine for free? NO! If you snap a brand new 4340 crank in half, will the manufacturer replace it for nothing or fix the damage it caused the rest of your engine? NO! If you blow a head gasket, will the gasket maker give you another one for nothing? No! If you flatten a lobe on a cam, will the cam manufacturer give you another cam or a set of lifters for free? No! So why expect us to replace something for free (if you break it) when not even the original manufacturer will do it? So, go get that "crate motor" with that so called "warranty" and see how far you get when it breaks.
For a copy of our warranty, click here. You must have Adobe Reader installed to read this document. To get Adobe Reader, click here.
Your gonna put an iron block in that sweet little car and destroy its handling?
Last edited by turtlevette; Jul 11, 2006 at 08:20 PM.
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Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,708
Likes: 25
From: Sorrento Italy
turtlevette, i was finding out what would be the weight of the replacement powerplant in order to see if hanling could be kept as nice and sweet as it is now, i was looking infos abt alu blocks as well and the engine builder where i bought the 406 i have under my vette told me they could build a sweet engine starting from an alu blk, of course at an extra cost.
you could ask why to exchange a 380hp 5 ltr engine if it has to pull only 1000 kgs, it's because i want a more streetable power, i know a 406 fm american speed could give easy 500hp without the hassle of 11.50 compression rates and everything is attached to that...
i want a big engine into a small conteiner...like the best wines
you could ask why to exchange a 380hp 5 ltr engine if it has to pull only 1000 kgs, it's because i want a more streetable power, i know a 406 fm american speed could give easy 500hp without the hassle of 11.50 compression rates and everything is attached to that...
i want a big engine into a small conteiner...like the best wines
