350/383 or 400 sbc - Aussie V8 | Holden - Ford

DAVO · 03-04-2008, 11:37 AM

hi.. looking for some thoughts on which is the better option, the car will see some strip time so do i go with the 383 stroker or 400 .plenty of people go the 350/383 but why not just start with the bigger cube 400 or is bigger not always better or is it cost factor with parts etc..cheers

allports · 03-04-2008, 03:23 PM

As long as you get a good block a 400 is fine, just get a real good cooling system, they do run hotter being siamesed bores.
After market block is the go if you can afford it. Even a 4.125" bore and a 3.48" stroke will work good.

ONN20 · 03-04-2008, 03:30 PM

Hey allports have you ever come across a destroked 400 ie: 4.125" bore 3.00" stroke?

Sorry for the hijack.

gas 84k · 03-04-2008, 05:41 PM

Go with a 400 but block selection is critical as they crack around the steam holes .The cost is the same as a 350 .You gain a lot more torque with the 400.6-7 grand will net you 500 plus hp -ft/lb if you build the right combo.

gas 84k · 03-04-2008, 05:43 PM

Thats grand as in dollars.

gas 84k · 03-04-2008, 05:51 PM

A good mate of mine used that bore stroke combo in his rail in the early 90's to compete in a certain class and held the title for quite a while .It made over 700 and spun to 10 000 till he flipped it at the creek at 170 mph.

STREETFIRE68 · 03-04-2008, 06:17 PM

go the 400, 350s are like belly buttons, everyone has one

lx406 · 03-04-2008, 06:31 PM

I have a 400 in my prem, and I love it. It makes 500 ft/lbs of torque. But finding a good 400 block these days is near on impossible. If the budget allows buy a dart lttle M block and fill it full of 400 chev parts. Otherwise a 383 stroker may be a good alternative.

ONN20 · 03-04-2008, 10:57 PM

Quote:

Originally Posted by STREETFIRE68

350s are like belly buttons, everyone has one

I don't. lol

STREETFIRE68 · 03-04-2008, 11:04 PM

Goodonya then

allports · 04-04-2008, 10:24 AM

Quote:

Originally Posted by ONN20

Hey allports have you ever come across a destroked 400 ie: 4.125" bore 3.00" stroke?

Sorry for the hijack.

Yeah mate and with a 3.25" stroke. All good. Big bore short stroke and winde it to oblivion is the best way to make upper end HP.
4.125" x 3.00" is 320.73cubes
4.125" x 3.25" is 347.46cubes

allports · 04-04-2008, 10:26 AM

Quote:

Originally Posted by gas 84k

A good mate of mine used that bore stroke combo in his rail in the early 90's to compete in a certain class and held the title for quite a while .It made over 700 and spun to 10 000 till he flipped it at the creek at 170 mph.

Silky wasnt it. Was a nice car if he's the same guy.

gas 84k · 04-04-2008, 06:20 PM

Quote:

Originally Posted by allports

Silky wasnt it. Was a nice car if he's the same guy.

Thats him lucky to walk away from that one his back still causes him greif.

HG383PREM · 05-04-2008, 10:54 AM

I went the 383 but that was only because our car was licensed with the 350, so to the unassuming eye, its still a 350 and its all "legal"

Cheers
Shane

DAVO · 05-04-2008, 10:23 PM

thanks for the replies everyone, plenty of options with going chev.will it need to be engineered if i put a 400 in it as its still a small block(its a hg prem) also ive been told about a 400 standard bore 4 bolt mains 3 welsh plug block thats for sale he wants $1500 does that sound around the right price. cheers davo

03-04-2008, 11:37 AM	#1 (permalink)
DAVO casual poster Trade Rating: (0) Join Date: Jun 2007 Location: PENRITH NSW Ride: SS CREWMAN , LH SL/R , HG PREM IN THE BUILD Posts: 83	350/383 or 400 sbc hi.. looking for some thoughts on which is the better option, the car will see some strip time so do i go with the 383 stroker or 400 .plenty of people go the 350/383 but why not just start with the bigger cube 400 or is bigger not always better or is it cost factor with parts etc..cheers __________________ NOTHINGS AS GREAT AS A THUMPING V8

03-04-2008, 03:23 PM	#2 (permalink)
allports Engine scientist Trade Rating: (1) Join Date: Jun 2007 Location: Sydney Ride: Dragster Posts: 3,202	As long as you get a good block a 400 is fine, just get a real good cooling system, they do run hotter being siamesed bores. After market block is the go if you can afford it. Even a 4.125" bore and a 3.48" stroke will work good. __________________ If you plant a cucumber, you get a cucumber! Two things are infinate,the universe & human stupidity, and Im not sure about the universe. Albert Einstein Without deviation from the norm, progress is not possible. Frank Zappa

03-04-2008, 06:17 PM	#7 (permalink)
STREETFIRE68 Chrome Bars = Real Cars Trade Rating: (0) Join Date: Dec 2007 Location: Adelaide, SA Ride: Your sister :) Posts: 1,314	go the 400, 350s are like belly buttons, everyone has one __________________ An optimist is someone who falls off the Empire State Building, and after 50 floors says 'So far so good!' ___________________________________ Last edited by STREETFIRE68; Today at 07:50 PM.

03-04-2008, 11:04 PM	#10 (permalink)
STREETFIRE68 Chrome Bars = Real Cars Trade Rating: (0) Join Date: Dec 2007 Location: Adelaide, SA Ride: Your sister :) Posts: 1,314	Goodonya then __________________ An optimist is someone who falls off the Empire State Building, and after 50 floors says 'So far so good!' ___________________________________ Last edited by STREETFIRE68; Today at 07:50 PM.

05-04-2008, 10:54 AM	#14 (permalink)
HG383PREM Newbie Trade Rating: (0) Join Date: Jul 2006 Location: Winkleigh TAS Ride: HG Premier, 383 chev, T400, 9inch. Posts: 28	I went the 383 but that was only because our car was licensed with the 350, so to the unassuming eye, its still a 350 and its all "legal" Cheers Shane __________________ My Shed

03-04-2008, 03:30 PM	#3 (permalink)
ONN20 2 many toys not enough $$ Trade Rating: (1) Join Date: Apr 2005 Location: Gold Coast Ride: 355 HQ Premier Posts: 1,178	Hey allports have you ever come across a destroked 400 ie: 4.125" bore 3.00" stroke? Sorry for the hijack.

03-04-2008, 05:41 PM	#4 (permalink)
gas 84k Senior Member Trade Rating: (0) Join Date: Feb 2008 Location: canberra Ride: vk 355 hq 308 tonner Posts: 419	Go with a 400 but block selection is critical as they crack around the steam holes .The cost is the same as a 350 .You gain a lot more torque with the 400.6-7 grand will net you 500 plus hp -ft/lb if you build the right combo.

03-04-2008, 05:43 PM	#5 (permalink)
gas 84k Senior Member Trade Rating: (0) Join Date: Feb 2008 Location: canberra Ride: vk 355 hq 308 tonner Posts: 419	Thats grand as in dollars.

03-04-2008, 05:51 PM	#6 (permalink)
gas 84k Senior Member Trade Rating: (0) Join Date: Feb 2008 Location: canberra Ride: vk 355 hq 308 tonner Posts: 419	A good mate of mine used that bore stroke combo in his rail in the early 90's to compete in a certain class and held the title for quite a while .It made over 700 and spun to 10 000 till he flipped it at the creek at 170 mph.

03-04-2008, 06:31 PM	#8 (permalink)
lx406 Adds to global warming Trade Rating: (0) Join Date: Nov 2005 Location: Traralgon, Vic Ride: HG Premier, 406 Chev, 11.48 @115. Daily 1968 HK Posts: 1,021	I have a 400 in my prem, and I love it. It makes 500 ft/lbs of torque. But finding a good 400 block these days is near on impossible. If the budget allows buy a dart lttle M block and fill it full of 400 chev parts. Otherwise a 383 stroker may be a good alternative.

05-04-2008, 10:23 PM	#15 (permalink)
DAVO casual poster Trade Rating: (0) Join Date: Jun 2007 Location: PENRITH NSW Ride: SS CREWMAN , LH SL/R , HG PREM IN THE BUILD Posts: 83	thanks for the replies everyone, plenty of options with going chev.will it need to be engineered if i put a 400 in it as its still a small block(its a hg prem) also ive been told about a 400 standard bore 4 bolt mains 3 welsh plug block thats for sale he wants $1500 does that sound around the right price. cheers davo __________________ NOTHINGS AS GREAT AS A THUMPING V8

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