21 replies to this topic

[Doddzie]

Hey everyone I dont really post much but yeah I was wondering if anyones put a 307 in a lc or lj I did a quick search but didnt find anything. Im thinking of a project for when im off my p's and wanto start hoarding parts early.

[rodomo]

Ha! Ha! Funny bugr ^ ^ ^

Search Chev in HB-LC-TA-LJ found 3 pages:
http://www.gmh-toran...p;highlite=chev

307 is a small block Chev but so is 350, 327 and others.
If you follow the guide lines for a small block Chev I think you'll find what you want.

[Doddzie]

The main reason I was asking is because I was looking into prices on parts and chev performance gear is relatively cheap in comparison to performance parts for holden 304/8's. I was just wondering if any money saved on the engine would then be wasted on problems arising with clearances or other unforseen problems when fitting the engine. Or would it end up being cheaper and less troublesome to just go with the tried and tested 308.

[mitchg]

Hey Doddzie, mate can you chuck up a few pics of your car... looks quite nice in your pic but would love to see the whole thing.

Cheers,
Mitch

[Doddzie]

haha i took that photo so it did look nice. It needs some work but it could be alot worse this photo was from last year.

Ive decided it would probably be easyier to find a 308 or 304 to build rather than go 307 soo yeah this topics pretty useless now unless someone has some advice to change my mind.

Edited by Doddzie, 13 April 2009 - 01:24 PM.

[xu2308]

There a Book called
XU2 TORANA by Geoff Baotswain
Shows you How to put a 308 or 307,327,359 chev etc into a LJ Torana
you will need a Rod Hatfield Chassis Kit and LX Torana V8 Disc's and LX Torana V8 Calipers for a start
for any V8 Job in a LJ,its best to get a Dummy Block of what v8 you are putting into a LJ,put ya engine
mounts on the block and sump to fit in the LJ and its easyer to work out steering etc,so buy a old Rooted Block ok
I can email you a pic of the Steering Set up for a Chev INTO lj if you want send me your Addy ok
Regards Allan

[xu2308]

V8 Dummy Block i mean No Heads on it,then Fit your Sump and Engine mounts on the block,then sit in Car.
You can work out the sterring better on a V8 LJ doin it like that,lot easyer than putting the Good Donk in
then have to pull it out,so a Dummy Block is the Go
Regards Allan

[xu2308]

The Rod Shop in Castlmain Victoria sell alot of Stuff to Fit V8's into LJ's
Steering Set ups i think,Hydraulic Clutch Set ups for V8 LJ as well as Dellow Automotive in Sydney
Sell hydraulic clutch Kits to fit V8 LJ's they sell Crossmembers for whatever Gearbox or Auto you use to
fit into V8 LJ.
The Rod Shop in vic have the gear for V8 LJ Conversions

[makka]

dont waste your time with a 307, go a 4" bore SBC (302/327/350)

[Doddzie]

The only reason im looking at a 307 instead of a 327 0r 350 is because of the issues regarding standard capacity seeing as its going to be a street car. Which i have heard on a lc or lj is only like 313ci. The other reason is theres a wider range of parts e.g cranks, heads, rods availible that are better quality than most of the stuff availible for holden v8's and is alot cheaper too. My main problems are A. finding a 307 and B. I didnt know how well it would fit. Thanks for that information xu2308.

[makka]

The only reason im looking at a 307 instead of a 327 0r 350 is because of the issues regarding standard capacity seeing as its going to be a street car. Which i have heard on a lc or lj is only like 313ci. The other reason is theres a wider range of parts e.g cranks, heads, rods availible that are better quality than most of the stuff availible for holden v8's and is alot cheaper too. My main problems are A. finding a 307 and B. I didnt know how well it would fit. Thanks for that information xu2308.

the sbc's fit in well, but there is probably more performance potential for a 308 than a 307 but the 307 is better than a 305 SBC

[ls2lxhatch]

Instead of the 307 (1968-1973) which are rare I would look at the 305 (1975-2003) SBC.

http://en.wikipedia....ll-Block_engine

[Doddzie]

ok thanks, im still open to the idea of a 304/308 but if i can get more power and better quality parts for the same price if not cheaper than building a 355 stroker I would rather that. Its only early days as i cant have a v8 for a few more years anyway but i would like to get some sort of plan in motion.

[ls2lxhatch]

If you are talking years then there is a chance that the NCOP will be adopted in QLD in which case you will be restricted to 4392 cc.

[Doddzie]

hmmm ok ill have to keep an eye on that.

[Bart]

If you are talking years then there is a chance that the NCOP will be adopted in QLD in which case you will be restricted to 4392 cc.

I think the new mod rules are fair way off?
Im in NSW

[ls2lxhatch]

Revision 2 of the NCOP is on the table now for comment.

You will notice in the summary of changes that some or the changes were made specifically for QLD and NSW.

I have no idea when if ever QLD and NSW will adopt the NCOP however if you are planning a long term project then it is something to keep in mind.

[Bart]

That�s ridiculous; they have restricted the engine capacity even further. It will end up being a wiper snipper motor in an LJ.

Hopefully they don�t implement it for a while. I only need a couple more months

[Bart]

That�s ridiculous; they have restricted the engine capacity even further. It will end up being a wiper snipper motor in an LJ.

Hopefully they don�t implement it for a while. I only need a couple more months

I just checked the RTA website and it still quotes the old formulas for engine capacity.

[yel327]

Holden 307 engines are pretty easy to find. They come up regularly on Ebay. Just need to know what you are looking for. The cheaper ones are those that were fitted pre Monaro (1/1/68 to 6/68), same thing just too early engine number wise for Monaros. In standard form the Holden 307 was pretty restricted with a single exhaust and 2 barrel carb on cast iron manifold. If you research enough you'll find that back in the day a change to the exhaust off the 327 and an inlet and carb off a 327 saw the 307 just as quick as it's 327 counterpart and much quicker than any 308 HT/HG. The latest (or next to latest) AMC talks about this in the article about the HK 307 rally Monaros.
I can tell you from experience with them that these Holden 307 blocks can be made into pretty good engines. I had one in a Landcruiser SWB that was standard except for being bored to 4" (making it a 327) and a mild cam. With the STD 307 heads and 327ci I think it was running about 9.2:1 compression. It used to wheelstand and chirp into 2nd and 3rd. My mate also had one in a HK GTS. It had been bored to 4.030" and had a 350 crank in it. Running alloy heads and a wild cam it used to pull sub 13sec quarters in a full bodied HK running a Muncie and 4.11 gears. It ran that way and copped a flogging for 15 years until it eventually snapped a rod bolt. We also had one in a HQ tonner, which was also bored to 4". It had 461 fuellies on it (about 11:1), cast iron 4BBL manifold and Holley with an M21 box. It towed like a locomotive. With a car trailer and Monaro on the trailer it'd easily accelerate in 4th gear from 80kM/h to very fast to overtake like no 308 I've ever had.
You can also bore them to 4" and run a 3.75" stroke crank making them 377ci, all in an engine that "says" it's a 307. Although the same can be applied to a 1968 302 or any 304/308.
If you already had a V8 in it i'd say build a 304/308. But if you have to buy everything anyway I'd seriously consider the 307. Built to the same specs it should outdo a 308 in most instances for less build cost (in performance gear). If you can't find one (you only ned the block and caps, cranks are same as 327 and can be bought new) and I should be able to point you in the right direction.