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Looking for 400 small block? Posted By: T_TopBandit On: 04-05-2008 @ 13:21:06 Reply | Edit I decided I'm going to build a 400 sbc with vortec heads and TPI! Not sure what would be a good year to look for the 400 and what came with them. That's my next project and also looking for a 80s chevy full sighs truck to restore and will put my 305 out of my TA in it. Posted By: LeadFootedRacer 
On:
04-05-2008 @ 13:39:43 Reply | Top | Edit
some late 70's trucks came with a 400. some even with a turbo 400 tranny. i have a 74 caprice with a 400 in it as well. lots of things came with 400s, but good luck. they are not a dime a dozen like 350s or a nickel a dozen like 305s -- 
--Fbody.Com Site Donator-- Posted By: LeadFootedRacer
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04-05-2008 @ 13:40:13 Reply | Top | Edit
oh and by the way, not to be a douche, but its SIZE, NOT SIGHS --
--Fbody.Com Site Donator-- Posted By: hurst On: 04-05-2008 @ 15:17:44 Reply | Top | Edit i put a 74 model in my 88 formula, although not sure what it came out of the guy i bought it off of deals with alot of trucks and big derby wagons i think you'll like it, i used factory tbi heads and intake, but would be interested how well your vortec heads work Posted By: mrcrazyhimself On: 04-06-2008 @ 11:14:48 Reply | Top | Edit My Caps Lock Button Is Broken -- 1989 Pontiac Firebird with 2.8 Posted By: mrcrazyhimself On: 04-06-2008 @ 11:16:06 Reply | Top | Edit I'm not super knowledgeable about engines and such but wouldn't it be a better bet to go with a nice 350? Atleast the parts are plentyful and I believe the 700R4 would be able to handle it? -- 1989 Pontiac Firebird with 2.8 Posted By: T_TopBandit On: 04-06-2008 @ 12:12:31 Reply | Top | Edit Yeah your probably right but I like to be different. Everbody and there brother has a 350 or has stroked them with a 400 crank to make a 383. The 400 is bad ass out of the box and makes so much torque and that's what I'm after! Also how sweet would it be to really have a 6.6 in my car done up like a Bandit TA and add the decal on the side of the hood scoop 6.6 ! My plans are to build a 10 to 1 comp 400 with aluminum vortec heads. Crane roller rockers and roller cam. Edelbrock TPI high flow vortec intake and high flow runners. 58mm throttle body and this max ported plenum. http://cgi.ebay.com/ebaymotors/TPI-CNC-PORTED-PLENUM-CORVETTE-C4-IROC-Z_W0QQcmdZViewItemQQcategoryZ33553QQihZ018QQitemZ280214146127QQrdZ1QQsspagenameZWDVW Posted By: Pocket On: 04-06-2008 @ 13:37:27 Reply | Top | Edit You do realize a poncho 400 BPO is not the same as a 400 SBC right? -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: T_TopBandit On: 04-06-2008 @ 16:01:08 Reply | Top | Edit No idea what you mean by poncho BPO? I only want a small block chevy 400. Posted By: LeadFootedRacer
On:
04-06-2008 @ 16:07:01 Reply | Top | Edit
PONCHO is a pontiac motor. much different than a SBC. correct me if i'm wrong, but in 82 pontiac started using sbc's in their cars. --
--Fbody.Com Site Donator-- Posted By: T_TopBandit On: 04-06-2008 @ 16:15:08 Reply | Top | Edit I've also been doing alot of research about vortecs and TPI. I learned a bit about TPI and found it was originally designed and calibrated for the 305 only. It was latter adapted to the 350 and no changes was ever made to open it up to breath better for the 350 so from the factory the 350 TPIs are chocked down. As far as the vortecs I've found nothing but good news about them and they will work on any sbc V8. And as for the TPI if you are building a bigger performance motor you have to get air thru the damm thing so you have to port the hell out of the plenum and use all after market parts, high flow base, runners, bigger throttle body, ect. The TPI was desighed for torque and gas mileage not high RPMs. I also read how thats why a stock TPI don't like revs past 5,000 because they don't breath good enough to feed air to the engine to turn that fast. By the way pocket would you explane poncho BPO? That's a new one on me. Posted By: T_TopBandit On: 04-06-2008 @ 16:16:34 Reply | Top | Edit I've never seen nothing but chevy motors in any 3rd gen as for myself. Posted By: T_TopBandit On: 04-06-2008 @ 16:27:35 Reply | Top | Edit Also I'll tell you the reason why I want a chevy 400 is back in high school a friend of mines dad was all about the 74-79 TAs. He had a yard full of them and the 2 that run good enough to drive was a 79 and a 78. The 79 had the big block pontiac 400 6.6. It ran ok but I was not impressed. Now the 78 had the same motor when he drug it home but was locked up. He had a nasty looking 400 sbc in his basment he decided to put in it. All he did to that motor was clean it up, put a small cam in it, a set of rusty ass headers he had laying around and an old carter 4b 750 carb he rebuilt. He put that with a 350 turbo tranny in that 78 TA and that dang thing would haul all kinds off ass. It would run circles around that BB Pontiac all day. So from that day I was sold on the sbc 400 and a firm believer in them! Posted By: Pocket On: 04-06-2008 @ 19:07:48 Reply | Top | Edit BPO = Buick Pontiac Olds They are not big blocks, they just look like that Common sizes were 350 400 and 455 Talk to 4Birdman for more info on 2nd gen bird history, they're not my cup of tea You are correct about the TPI and you could have found that in most of the "Whats wrong with my car" posts you made The plenum flows quite well for what its on, the problem lies in the base and runners as there is very little material to remove Dont waste your money on a bigger TB You dont need it You will pick up more power with the airfoil in a stock TB than a 58mm TB As for the vortecs, they are a very good flowing common head Thats why they are so popular, much like the double humpers of days past They are not the best, most aftermarket heads will outflow them, but thats comparing a $250 set of heads to a $1500 set of heads In 82 GM put SBCs in all of their performance cars and trucks (few BBCs here thou). Very often SBCs are swapped into 1st-2nd gen birds thou but they were not factory It would run circles around that BB Pontiac all day I hope a cammed SBC will do better than a factory boat anchor -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: Shift On: 04-07-2008 @ 20:11:46 Reply | Top | Edit 350's are a dime a dozen? Then why cant I find any! lol --  Posted By: LeadFootedRacer
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04-07-2008 @ 23:51:05 Reply | Top | Edit
cuz your in canadia, where 350's dont exist! duh! --
--Fbody.Com Site Donator-- Posted By: Shift On: 04-08-2008 @ 23:06:32 Reply | Top | Edit Just sell me your rims for $5 and be done with it :| -- Posted By: DZ On: 04-15-2008 @ 15:45:07 Reply | Top | Edit One of the reasons the SBC 400's are so hard to find is because of the short run. i believe they were only produce from 1970 to 1980. Not as short a run as an old school LT-1 or A DZ but still short enough. If you find one be sure and puch the steam holes in the heads and gaskets if they arent there already.You dont want to put it all together and have it overheat. Thats why the 400s had a bad rep. Posted By: Remdog On: 04-29-2008 @ 17:53:14 Reply | Top | Edit haha i have two 400,s one is a 2 bolt main and one is a 4 bolt Posted By: Pocket On: 04-30-2008 @ 04:05:24 Reply | Top | Edit Why do you dig up so many old threads with nothing useful to add? -- "If you have complete control over the damned thing, you're not going fast enough." - Carrol Smith Posted By: roubenbird On: 04-30-2008 @ 14:08:59 Reply | Top | Edit Why do you continue them? Riddle me that Mr. Glasscock. -- Being rebuilt, It'll take a while: 
WS6 3o5 TBI 88' Formula, 670cfm Holley Projection Throttle Body Holley Projection Intake Mainfold, Underdrive Pulley,Dual Snorkle & Factory Cowl Induction,now with short straight pipes, UMI Subframe connectors, Fourth Gen seats, Three row Radiator, Posi rear end (2.73),TPI heads, 1.6 roller rockers 15.543 @ 88.21mph Posted By: dan On: 04-30-2008 @ 14:30:54 Reply | Top | Edit why is there so much stupid in this particular section of the board -- 98 formula m6 13.125 at 105.22 1.949 60' with just a lid ls1,t56 "vehicle delete mod" 92 d250, 99 firebird Posted By: LeadFootedRacer
On:
04-30-2008 @ 17:38:10 Reply | Top | Edit
stoopid? not me! --
--Fbody.Com Site Donator--
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