 |
|
| Pontiac - Street No question too basic here! |
| View Poll Results: Which Engine for My New Build and Why | |||
| 440 |
   
|
9 | 16.67% |
| 455 |
  
|
33 | 61.11% |
| Other |
  
|
12 | 22.22% |
| Voters: 54. You may not vote on this poll | |||
| Reply |
|
|
Thread Tools | Display Modes |
|
#1
06-21-2017, 10:07 PM
|
||||
|
||||
Poll: 455, 440, Other
Ok, so my stock 455 ingested some paper that apparently was hiding inside and ended up damaging it due to oil starvation.
http://forums.maxperformanceinc.com/...d.php?t=806506 This poll is to ask what I should build and the pros and cons associated with each: 440, 455, or Other The car is a '70 LeMans with a TH400 and 3.08s. It is a street cruiser and will see highway time and no strip time. I just want a fun motor that has power but great manners because it will get its AC hooked up as well. I have a 428 crank as well as the 455 so I was considering building the 440. Of course a 455 represents the "no replacement for displacement" category but I'd like some input.
__________________
The More People I Meet, The More I Love My Dogs! Last edited by ponchjoe; 06-21-2017 at 10:12 PM. |
|
#2
06-21-2017, 11:42 PM
|
|||
|
|||
|
For tall 3.08 gears and a "fun cruiser" you can't beat a 455.
The only reason to de-stroke and build a 440 is because, like me, you're weird and want to do something a little different and maybe try to turn some stupid high RPMs. That doesn't seem to fit your goals, so stick with the 455. You need torque and there really is no replacement for displacement where that's concerned.
__________________
---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
|
#3
06-22-2017, 01:47 AM
|
||||
|
||||
|
What Will said. 440 for a screamer with low gears, 455 for a cruiser with high gears.
__________________
Paul Carter Carter Cryogenics www.cartercryo.com 520-409-7236 Koerner Racing Engines You killed it, We build it! 520-294-5758 64 GTO, under re-construction, 412 CID, also under construction. 87 S-10 Pickup, 321,000 miles 99Monte Carlo, 293,000 miles 86 Bronco, 218,000 miles |
|
#4
06-22-2017, 06:19 AM
|
||||
|
||||
|
It's real simple, if the car is over 3600 lbs with you in it go with the 455, it's power band with stock iron heads , a Cam of 225 duration @ .050" will be 2400 to 5000 rpm with 3.08 gears is great!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#5
06-22-2017, 07:00 AM
|
||||
|
||||
|
Go with the 455.. As long as you are grinding the crank anyway, have them do an offset grind to BBC journal size and pick up a little extra stroke. If this is just a cruiser, no need to stress the internals with a bunch of rpm. You will have plenty of power and the engine will live a long life.
__________________
69 Judge convertible........clone! Carousel red, parchment, hideaways, TH400, 10" Continental 3200 stall, 12 bolt with 3.42, 469 c.i. with ported #48's, ported cast iron intake, Cliff's Q-Jet and ported 2-1/2" Ram Air manifolds. |
|
#6
06-22-2017, 07:02 AM
|
|||
|
|||
|
455
Sent from my iPhone using Tapatalk
__________________
1979 Firebird Trans Am 301/4spd (Now 428) 1977 Firebird Formula 400/Auto 2007 Grand Prix GXP 5.3L |
|
#7
06-22-2017, 07:19 AM
|
||||
|
||||
|
Quote:
__________________
The More People I Meet, The More I Love My Dogs! |
|
#8
06-22-2017, 07:25 AM
|
||||
|
||||
|
Does the car have a posi rear now?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#9
06-22-2017, 07:27 AM
|
||||
|
||||
|
Quote:
__________________
The More People I Meet, The More I Love My Dogs! |
|
#10
06-22-2017, 07:33 AM
|
||||
|
||||
|
With whatever you build for street only usage , even if it was just a 389 those 3.73s need to go anyway!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#11
06-22-2017, 07:53 AM
|
||||
|
||||
|
Quote:
__________________
The More People I Meet, The More I Love My Dogs! |
|
#12
06-22-2017, 08:20 AM
|
||||
|
||||
|
455 for that application.
__________________
71 Formula 433, Splayed cap 400 block, 4" stroke Scat forged crank, 6.8 Eagle rods, custom Autotec pistons. SD 295 KRE D ports, Old faithful hybrid roller, Torker II, Holley Sniper Stealth, Tribal Tubes, TKO 600, 3.73 Eaton posi. |
|
#13
06-22-2017, 08:37 AM
|
||||
|
||||
|
You already have the 455 so it makes the question easy for me, Build the 455
 If you were starting from scratch and had nothing I might suggest something different. |
|
#14
06-22-2017, 08:40 AM
|
||||
|
||||
|
To the gentlemen that said other I'd like to hear your thoughts
__________________
The More People I Meet, The More I Love My Dogs! |
|
#15
06-22-2017, 08:44 AM
|
||||
|
||||
|
Quote:
|
|
#16
06-22-2017, 08:58 AM
|
||||
|
||||
|
If you don't boil the tires up now stop light to stop light the TQ of a stock 455 with 3.73 gears in the back then it needs to hone thru anyway!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#17
06-22-2017, 10:46 AM
|
||||
|
||||
|
Other
400 is the gold standard IMO.
__________________
Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk |
|
#18
06-22-2017, 11:00 AM
|
||||
|
||||
|
Quote:
__________________
The More People I Meet, The More I Love My Dogs! |
|
#19
06-22-2017, 01:09 PM
|
|||
|
|||
|
455 if you don't want to change your gear ratio.
I was just reading an old H-O performance parts catalog where the section with the best all-around combination was written. I miss those guys and wished that I had purchased a few more items when I had the chance. |
|
#20
06-22-2017, 01:42 PM
|
|||
|
|||
|
455........What heads are you running currently?
What the budget? Any room for port work & bump up the compression a little......might be the best bang for the buck!! |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
