If you were going to put a v8 into your LC/LJ, Which is better, the red motor,blue,black or the injected 5L? Considering more power(capability,stroking,blower),better sound,reliability,and regulation with our laws today in NSW? Thanx,i want ot buy a v8 and start building it myself,taking my time,but not sure which to get,not sure on the differences aswell. Know the few such as little vary in power,emissions but other than that.... So your thoughts would be great.
Cheers
Which 5L is better?
Started by
_celoslj_
, May 11 2009 09:26 PM
19 replies to this topic
#2
REDA9X
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Posted 11 May 2009 - 09:31 PM
the last Holden V8's made for the VT, setup for roller cam and stroker crank
#3
Heath
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Posted 11 May 2009 - 09:59 PM
308 breathing through late model heads is what I consider the best sound and bang for buck.
The most radical difference is early style heads, compared to late model heads. The early style heads (or 'HQ style heads') have reasonably small ports that are pretty mediocre. The late model heads (or 'VN heads') flow huge cfm, more modern port design, evenly spaced exhaust ports etc. Heaps of people use carbies on them, even though they were only released for EFI applications.
Exhaust port pattern is different, so pipes are not interchangeable. I don't know about inlet manifolds? V8s aren't my fort�
Basically people run an early block with modern heads, so that they can avoid the pollution requirements of a 1990s car, which the block would be out of if it matched the heads.
The most radical difference is early style heads, compared to late model heads. The early style heads (or 'HQ style heads') have reasonably small ports that are pretty mediocre. The late model heads (or 'VN heads') flow huge cfm, more modern port design, evenly spaced exhaust ports etc. Heaps of people use carbies on them, even though they were only released for EFI applications.
Exhaust port pattern is different, so pipes are not interchangeable. I don't know about inlet manifolds? V8s aren't my fort�
Basically people run an early block with modern heads, so that they can avoid the pollution requirements of a 1990s car, which the block would be out of if it matched the heads.
#4
lakeside
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Posted 11 May 2009 - 10:15 PM
if your after a sump, i have a brand new High Energy, Pro-Eliminator Pan for one
#5
gtrboyy
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Posted 11 May 2009 - 11:36 PM
Really depends on just how much power you want,budget & how you want it to look in the engine bay...injected or carby...vn heads or early heads.
Simplest way to go is to use an earlier red block with vn heads & injection,no need for pollution crap & you can have engine bay looking nice.Also makes for a nice cruiser with decent grunt if matched up with the right diff & transmission.I've seen lc/j's run 13's with a stock as a rock 165kw vn engine.
Simplest way to go is to use an earlier red block with vn heads & injection,no need for pollution crap & you can have engine bay looking nice.Also makes for a nice cruiser with decent grunt if matched up with the right diff & transmission.I've seen lc/j's run 13's with a stock as a rock 165kw vn engine.
#6
yel327
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Posted 12 May 2009 - 06:06 AM
I'd just stick a VN-VSIII injected motor in it. Simple conversion. Back it up with a T5, TH350, M21 whatever suits you. Change the memcal later on for more grunt. Will give great economy in a tiny little LC/J and you won't have any emissions worries other than cats.
#7
mr5000
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Posted 12 May 2009 - 08:03 AM
the guys at pro stroke told me that black efi blocks were the best for stroking apparantly they have thicker sidewalls
#8
_celoslj_
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Posted 17 May 2009 - 10:21 PM
can i use a 304 block and put a carby manifold on it, then if wanted can go injected anyways.
#9
_beergut_
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Posted 14 June 2009 - 05:10 PM
no harrop does a manifold for the vn heads and carby
um and maybe redline
but your exaust and cams are different too
but they flow the best of all the holden std heads
um and maybe redline
but your exaust and cams are different too
but they flow the best of all the holden std heads
#10
_beergut_
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Posted 14 June 2009 - 05:26 PM
oh and from vn on all blocks where turbo patten
#11
_rorym_
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Posted 14 June 2009 - 06:18 PM
Thats not your problem...your problem is massive power and not being able to get it to the ground because of the lightweight body...power is good...transferring that to the ground is a whole new problem. RED is correct..but any 5L is better than any early block.
R
R
Edited by rorym, 14 June 2009 - 06:19 PM.
#14
wot179
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Posted 14 June 2009 - 09:21 PM
Which 5 litre is better?
The Chev sort I reckon.
The Chev sort I reckon.
#15
xu2308
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Posted 14 June 2009 - 10:08 PM
The HG Red 308H Block,there are some of them Blocks that are thicker than the QT/HT/11QT Etc
i think the 308H Block that are thicker,them 308H ones,where the 308 is Stamped on the Block by it self have 308 M or something on them,i think some HG Monaros have them,and the early Repco 5000 308 engine are the same or started from them 308H Blocks originally
i think the 308H Block that are thicker,them 308H ones,where the 308 is Stamped on the Block by it self have 308 M or something on them,i think some HG Monaros have them,and the early Repco 5000 308 engine are the same or started from them 308H Blocks originally
#16
_rorym_
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Posted 14 June 2009 - 10:55 PM
Any VN on blocks makes the old ones look like a handgrenade...the webbing alone makes them a better proposition.
R
R
#17
xu2308
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Posted 14 June 2009 - 10:58 PM
The 5.0Litre VN Blocks better than the HZ 308 Red Block and 308H(308M)Block rory
thats good to know,never new that,thought they were same as the run of the Mill 308 Block
thats good to know,never new that,thought they were same as the run of the Mill 308 Block
#18
_82911_
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Posted 14 June 2009 - 11:00 PM
Walkinshaw 4 bolt mains or VN Group A four bolt mains.
Both use Chrysler diametre roller lifters......
Bit pricey for the everyday though....
Both use Chrysler diametre roller lifters......
Bit pricey for the everyday though....
#19
xu2308
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Posted 14 June 2009 - 11:02 PM
Is the Norm 308 VN Block the same as the VN SS Group A,i thought all VN EFI 308 were 4-Bolt Main Blocks with A9L Bearings
#20
gtrboyy
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Posted 14 June 2009 - 11:47 PM
Nope,the grp a blocks have thicker mains webbing for the 4 bolt caps.
Normal vn block is bit thinner & still needs welding,machining etc for 4 bolt caps.
Normal vn block is bit thinner & still needs welding,machining etc for 4 bolt caps.
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