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307 Chev into 240 series

StealthStyles

StealthStyles

New member
Joined
Aug 3, 2004
Location
Australia
Yo!

Anyone got ideas or links on information about 240s with 307 Chevs in them? Any company make mounts for this conversion or do I have to make my own?
 
sorry for the thread jack, but who's that in the damn avatar? DAMN!


and isn't 307 a typical small block? if it is, I'm sure the small block kit will work.
 
if anybody so much as mentions a 307 chevy tell them off, the 307 is the worst one of the sbc group, id litterally puke if i had one, but i have the lovely and talented 305 (insert pukeing noises) want a good sbc, go with the 350, 327(more $ to build), or 400. for other v8's a great swap would be the 302 ford, or 5.0. as its known, they respond well to mods and are easy to get hp from, they are lighter as well than the sbc's.

doug. aka - matt's brother
 
No idea man, just a hot chick.
av-7645.jpg


Which company does the small block kit? I'm in Australia and know a guy who does kits for 308 Holden V8s, infact he owns 2-3 200s with V8s.

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I was asking about a 307 because I know someone with one for sale, I want something different to the 308s over here because they are quite expensive anyway. I'd prefer Chevy and would like to stay under 327ci if I can.
 
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Maybe get a 305? I've had good luck with them before, and they're pretty standard, very very similar to the 350.


-Andy
 
Okay,

I've been waiting for a question like this for about a year. It was almost a year ago that I bought my '71 Camaro with a 307. I later sold this car for my 740T, but not because of the engine - rather the craptastic body that needed all kinds of work.

Mkay, so with regards to the 307. The 'puke' factor of this engine is almost completely undeserved; The crappy reputation is a result of the few numbers made combined with its use in Buicks during the early '80's; combined with the crappy two barrel carb and restrictive intake that most came with in the '69-'73 Chevy's.

Mine was a torquey but rev happy little SBC that regularly smoked 5.0's. Obviously if you go with any SBC, you might as well get the largest C.I. one you can find (ie. 400) but my "**** box" put down about 300 lbs of torq to the wheels at 2500 rpms. So there.
 
What's the setup in terms of mounts, bellhousing bolt-patterns, blah-blah-blah for a 305 as opposed to 307, 327, 350, etc? If they're all the same or similar, that might answer Stealthstyles' questions; the only SBC we've had in Oz since about 1968 is the soon-to-be-superceded LS1/Gen-III.
 
StealthStyles said:
No idea man, just a hot chick.
av-7645.jpg


Which company does the small block kit? I'm in Australia and know a guy who does kits for 308 Holden V8s, infact he owns 2-3 200s with V8s.

358863_2_full.jpg

358863_3_full.jpg

358863_4_full.jpg


I was asking about a 307 because I know someone with one for sale, I want something different to the 308s over here because they are quite expensive anyway. I'd prefer Chevy and would like to stay under 327ci if I can.
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Thats a really nice Holden conversion. VN or VP?
what state are you in?

Cheers,
Ash

PS. Theres a guy in the Volvo club of Vic, who has a Holden VN V8 in a 262.
 
StealthStyles said:
Yo!

Anyone got ideas or links on information about 240s with 307 Chevs in them? Any company make mounts for this conversion or do I have to make my own?
Click to expand...


JESUS!!! DON'T USE A 307!!!!!!!!!!! the worst motors ever. i worked at a gm dealer for a few months years ago. in four months saw about five 307's come in blown up. they are gutless in stock form, and hard to find parts for otherwise. at least use a 305, and if you go to that trouble use a 350. i wouldn't settle on anythin less than the 350. at least from chevy. you could go with a ford 302 etc.

check out jags that run ( i think it is just www.jagsthatrun.com) but i don't know for sure, i haven't checked

james
 
thats it, they also sell a book outlining the steps in doing a conversion, i suggest reading this first. they also sell most of the parts to install them under steath engineering. they're relatively cheap. if you can get a sbc cheap go that route. here 5.0's are cheap but more to install, and sbc's the opposite. i also recomend going to brickboard.com, as they have a whole forum dedicated to volvo v8 swaps.
 
You 307 haters must be thinking of the 307 Oldmobile engine used in late 80s Chevy wagons.
307 small blocks are as good as 305 small blocks.
Chevy went throught various engine configurations that look the same.
The sizes I remember are 262(smog), 265(1955), 267(80s smog), 283(1960s) 302, 305, 307, 327(1960s, both it and the 265/283 had the screw-in core plugs behind the timing cover, are small- journal mostly, and should be avoided for cost issues), 350, 400(has 3 side freeze plug holes or bosses), and of course, using different cranks and bores you get all sorts of aftermarket sizes, 377, 383, etc.
An engine is just an engine. There is no voodoo involved unless you are talking Triumph Stags or other arcane engines that require odd knowledge and/or die strange deaths.
 
here's a pic of the Olds
<img src=http://www.proformanceunlimited.com/Robert_307_Olds_1b.jpg>

One more thing: Chigga was right, most Small block chevy kits will work IF he has a Chevy engine.
He owns what he owns, so you people need to stop telling everyone to throw away what they own and go spend money on something you think is better. It is not polite.

Welcome to the board, Stealthstyles.
 
StealthStyles said:
Yo!

Anyone got ideas or links on information about 240s with 307 Chevs in them? Any company make mounts for this conversion or do I have to make my own?
Click to expand...

StealthStyles,

You should check out the Brickboard V8 section. It is dedicated to V8 conversion Volvos. You can search on different subjects and ask questions that we'll guess answers to. :lol: '

Brickboard V8 page

enjoy,
simon
 
well do you guys get a 350 in Oz right now? the LS1? cause what's in that car right now looks like an LS1. the engine in that car is a 307, eh, cause from what i can see it's got the LS1 intake manifold at the least. but maybe they give yall a 307 LS1 variant, hell if i know! or you could find an LM7(5.3L/327c.i.) which is the LS1 variant put in the GM trucks/SUVs. get some body form down there in the land of Oz to help you. we yanks must not be of too much help.

matt.
 
No, the engine in that car is a late 80's to early 90's Holden engine ... they developed it here in the late 60's, & it was grampa's-axe developed & updated over about 30 years until they dropped it & fitted the LS1 to Holdens in the very late 90's. The existence of the Holden engine is why they stopped selling SBC's in the early 70's (they did sell the Chev 350 on one or two performance models alongside the Holden 308 in the very early 70's, but not for long).

'Cos there are a lot fewer cars here in general (under 10% of USA's population, let alone all of North America), plus the fatc that most Commodores are bought as company-cars & companies rarely buy V8's, LS1's aren't common or cheap to get hold-of yet. They've only been sold here in the 300hp-400hp 5.7L variants.
 
The 307 was one of the worst small block Chev engines mainly because it used a small bore and long stroke along with a weak cam, low flow heads and that 2 barrel carb. They didn't respond at all to the usual methods of increasing horsepower.

The 302 used in the original Z28 was the best configurations for the small block Chevy in my opinion. It used a 4" bore and a 3" stroke. With a roller cam it would make great power from idle to over 8000 rpm. This combination would be great for a 240.

I think you would get a faster car by turbocharging the Volvo than by swapping a 307 into your car.

As always, my opinion.
 
The Chevy 302 was/is a really wonderful beast, but I as I implied above: to simply say that the 307 does not respond well to modification is just plain false IMHO. As I said, my '71 Camaro w/307 put out a gross hp and trq rating of 200/300 resectively in '71; which came out to about 145hp and 235lbs to the wheels. I replaced the intake manifold, slapped a quadrajet carb and hooker comp. headers with dual flowmasters and I added roughly 120 hp and 100 lbs of trq.

Sure, it was no 426 Hemi, but it got the job done.

Of course, I'd much rather put twin turbos on a Ford 5.0 and call it a day.
 
Some of you might be familiar with the Primedia Engine Masters Challenge, held each year, now going on the 3rd season.

The first year 3rd place nationally ( and we are talking engines built by *top* sprint car and drag race shops) was won by a modified 307 SBC, the block of which was abandoned at the guy's shop by someone who listened to too many people like some of the posters here. Kinda ironic, yes? :???:

The OLDS 307 was weak, yeah...
 
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