| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
12-24-2024, 04:31 PM
|
|||
|
|||
Pontiac 4.00” stroker kits
Is there anyone such as Eagle or ? making 4" stroke cranks or stroker kits for the 389 or 400 blocks with 3" mains? I see many for the longer strokes. I prefer to stay at the 421 or 428 cu. in.
|
|
#2
12-24-2024, 05:06 PM
|
||||
|
||||
|
Butler offers a stroker kit for $3200.00that will get you 421 to 428 cid out of a 389.
__________________
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! |
|
#3
12-24-2024, 05:07 PM
|
|||
|
|||
|
Molnar.Tom
|
| The Following 2 Users Say Thank You to tom s For This Useful Post: | ||
|
#4
12-24-2024, 07:13 PM
|
|||
|
|||
|
The Butler stroker kit has Scat forged Crank & Rods. Butler also sell Molnar 4.00 forged crank & 6.700 rods that they may substitute If you asked. For a few dollars more?
Last edited by Quad; 12-24-2024 at 07:48 PM. |
|
#5
12-27-2024, 08:12 AM
|
||||
|
||||
|
There are no cast 4” cranks I can find for a 400 anywhere. Molnar forged is it for about $1200 bucks by the time you ship it
__________________
The More People I Meet, The More I Love My Dogs! |
|
#6
12-27-2024, 02:41 PM
|
|||
|
|||
|
Molnar sounds expensive until you realize you dont have to get it turned hacked or welded just to use it.. rods or crank ...
__________________
.................................................. .No One Ever Escaped Tyranny By Compliance.............................. |
| The Following 2 Users Say Thank You to Formulas For This Useful Post: | ||
|
#7
12-27-2024, 03:30 PM
|
||||
|
||||
|
Do folks realize "stroker kits' are individual crank, rods and pistons that function properly together and come with rings and bearings.
Each part can be purchased separately and from different manufacturers.... that also gives you better options to tailor the parts to your specifications. |
| The Following 2 Users Say Thank You to PAUL K For This Useful Post: | ||
|
#8
12-31-2024, 06:05 PM
|
|||
|
|||
|
I do understand that. I generally use Ross pistons and tell them the compression height I want. I was just wondering about the crank. All I was seeing was the longer stroke which I don't particularly care for. I was sniffing around looking for a 421 or 428 but it seems like the ones out there are pricey. It may be cheaper in the long run to build a 421 from a 389 or maybe a 428 from a 400.
|
| The Following User Says Thank You to 1950Mercury For This Useful Post: | ||
|
#9
12-31-2024, 09:13 PM
|
|||
|
|||
|
OEM 428 crank in a 455 block works well also
__________________
.................................................. .No One Ever Escaped Tyranny By Compliance.............................. |
| The Following User Says Thank You to Formulas For This Useful Post: | ||
|
#10
12-31-2024, 10:57 PM
|
||||
|
||||
|
Quote:
x2.....this is exactly what i have on one of my stands now. |
|
#11
01-01-2025, 07:47 PM
|
|||
|
|||
|
Yes.. That may be considered. Depending on if I find a 400 or6 a 455 at a reasonable price with in driving distance from me. I almost prefer the smaller journals. Just like 327 Chevy. Small journal seems to run stronger.
|
|
#12
01-01-2025, 08:05 PM
|
||||
|
||||
|
Quote:
|
|
#13
01-01-2025, 08:07 PM
|
||||
|
||||
|
Quote:
GT |
|
#14
01-02-2025, 05:21 PM
|
|||
|
|||
|
Northern Idaho
|
|
#15
01-02-2025, 05:23 PM
|
|||
|
|||
|
They run strong. I'm running 2. One in a 50 Merc. and one in a 34 5 window coupe.
|
|
#16
01-03-2025, 02:19 AM
|
||||
|
||||
|
Quote:
GT |
| Reply |
| Thread Tools | |
| Display Modes | |
|
|
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
