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VK Black 308? Good block?

Started by _rorym_ , Sep 21 2006 08:15 PM

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#1 _rorym_

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Posted 21 September 2006 - 08:15 PM

Are these thing desirable to build a good semi race motor out of? Found one cheap for the MHDT LH L34 replica.
R

#2 _rorym_

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Posted 21 September 2006 - 08:29 PM

Good webbing like the so called "X" blocks?
R

#3 TerrA LX

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Posted 21 September 2006 - 08:35 PM

id think the later the better so a black should be better than a early red just due to int corosion.
i think the best standard webbing and reinforcement would be the VS type.
as with any block check bore thickness and any damage from previous failers and tunnel condition (straight edge should surfice), make a good visual of all threads (sometimes overlooked till reassembly)

edit; i think all late VS - VT were roller blocks.

Edited by ALX76, 21 September 2006 - 08:46 PM.

#4 _rorym_

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Posted 21 September 2006 - 08:40 PM

I will be running VN heads as they are already unleaded and flow shit loads without being modded...though the ones I am keeping my eye on have been for sale for a year and still sitting there and they have been ported so should be good for 500+Hp flow. Was just looking at a good strong base block and know bugger all about anything after HQ reds.
R

#5 gtrboyy

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Posted 21 September 2006 - 08:51 PM

Generally the later the better due to less corrosion & std bore size(hopefully) vr-vs would be good as you won't have to pay extra to have the block clearanced if you decide to put a stroker crank.The last of the vs(s3)-vt blocks have the roller cams but the cams cost a fair bit more.

Also depends on what bolt pattern you want as well.

#6 _rorym_

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Posted 21 September 2006 - 09:04 PM

Well MRNOS is trying to talk me into running a TREMEC so there is no box problems to worry about.
When did 4 bolt mains come in?
R

#7 TerrA LX

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Posted 21 September 2006 - 09:09 PM

VS - VT roller again i think.
also VN Grp A and VS 5.7 if you can find/afford one.

Edited by ALX76, 21 September 2006 - 09:10 PM.

#8 _82911_

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Posted 21 September 2006 - 10:19 PM

Rory...
all the boys are on to it.... the later the block the better they are...
One thing though... check for core shift as some 308's are bad for it...
Group A VN/VL Walky or GTS 5.7 block is the best of the factory cores. Both have raised lifter bores as well as clevo sizing on the lifters,so they run more agressive profiling on the cam timing.
The be all and end all is the PE block... How serious are you going to get with this thing? Cause if it is a strictly race thing.. and you are looking to 550HP+ then you are going to need to get the block right the first time or it is going to be expensive in the long run...
At these power levels 4 bolt mains are a must.
Just wondering how deep the bug has bitten after speed on tweed....
Off topic........
You noticed how Mr Dummet drives hey!!! Flat out or get out.... certainly leaves a lasting impression!

Cheers Greg..

#9 _rorym_

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Posted 21 September 2006 - 11:13 PM

Greg,
Dummet is spectacular but the fastest Touring car was a RS2000 Escort!
I want 400/450 HP..reliable...thinking VN/VS 304,VN ported heads,10:1,780 DP Holley.Harrop manifold .cam to suit..still drivable ..TREMEC, VL B/W Diff 3.45 full spool. HQ pattern brakes..15 x 8, 15 x 10 hotwires..etc etc.. That should fit the bill for a fun weekend on slicks!
R
I entered Noosa Historic...going to fit the 13 x 7 hotwires all polished up with black centres.

Edited by rorym, 21 September 2006 - 11:24 PM.

#10 A9X

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Posted 22 September 2006 - 01:28 PM

Greg, What is the PE block?

Perkins Engineering?

Welby

#11 _82911_

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Posted 22 September 2006 - 01:37 PM

^ Yep!
that's it..PE = Perkins Engineering= the best = I'm broke :cry:

Cheers Greg..

#12 A9X

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Posted 22 September 2006 - 03:18 PM

G'day Greg.
I'm keen on hearing more about your PE engine.

I'm building an A9X Group C replica for Targa work and am getting close to the engine stage.

What do you know about Larry's engines?

Welby.

By the way, your mailbox is full.

Welby

#13 gtrboyy

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Posted 22 September 2006 - 03:26 PM

Go the vr-vs block,arp stud kit with a girdle & put a stroker crank in it.Then 400-450hp won't be too much to ask for with the rest of the stuff you mentioned.It will be a similar set up that will be going in my lc later on.

Although I would use the new torque-power manifold,it's sounds very promising.

#14 _rorym_

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Posted 22 September 2006 - 04:29 PM

Just looking for a good reliable combo that will not break every 5 minutes...seems to be the goods from what I am reading here. :spoton:
R

#15 MRLXSS

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Posted 22 September 2006 - 08:12 PM

I am assuming that you are going to keep the stock stroke? I am going to be following this build closley, I reckon you should go webbers though......

edited to add, this is makka on 253toranaSS's computer! :huh:

Edited by 253ToranaSS, 22 September 2006 - 08:13 PM.

#16 _rorym_

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Posted 23 September 2006 - 10:52 AM

There is no one around here to tune webbers, plus the car will run VN heads so the manifold will be expensive enough. Lots of Holley gurus around and I doubt I will notice the small diffence webbers would achieve...they mainly work better at full throttle and top end..
R

#17 _MRNOS_

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Posted 23 September 2006 - 08:31 PM

Rory just get a VN 304 engine, my engine builder has built a few 400+hp engines and he reckons the VN blocks are 1 of the better 1's around, and get a Barry Grant carb rather then the Garden variety holley, much better for HP and torque and better to tune

#18 _rorym_

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Posted 23 September 2006 - 08:48 PM

Easy.
R

#19 _lurkin308_

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Posted 23 September 2006 - 09:19 PM

rory mate ive had no probs with my vk 308 black its 65 up and dosent over heat stock stroke a 286 and making over 350hp and its got tin head gaskets and 10.5 to 1

#20 _rorym_

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Posted 24 September 2006 - 02:55 PM

Lurkin,
The VN/VT block has A9X + webbing and are super strong I am told. Probably better to start with that one from scratch. If I can find a 4 bolt mains it will be all the better.
R
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