JamieG brings up a good point about the mounting brackets, I mention about them below, in a nutshell, the ones in there will be knackered so they'll changing anyways due to being rubber. But they're pretty inexpensive to change. I 2nd Twisteds and JamieG's thought on the 350, from what i remember it's the same block as the 305, just the crank and heads are different (and inbetween stuff)? But of course, it's your car so go with what you are most comfortable with.
One thing i just thought of, the fuel lines are likely 5/16 on your car, as it came with the 289. the V8's had 3/8 fuel lines to help with extra flow. Though, mine was also originally a 289 car but the fuel lines were 3/8, so worth checking as if it is 5/16, then it may cause flow restrictions.
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I will always work to work around speedfest so no worries there haha
Good to hear
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I think I will stick with my gearbox and offer the new block in and pray it all lines up then if I come across a manual gearbox and pedal box I will change up for that.
I'm 99.9% sure that the auto box has the same fitment and bolt pattern as the other auto boxes, so this part should be ok. The only thing that may be affected is the driveshaft length, but i have a feeling the the case is the same size as the th350. Will double check this.
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What do you mean by add a master cylinder? Just Uprate from the current one? This power steering pump booster sounds interesting.
Sorry, i meant brake booster - the big round thing that sits behind the master cylinder ( i get confused because master has the word cylinder in it, and the booster is a big diaphragm, aka cylinder). You'll definitely want to have some brake assist with a bigger engine. Flakmonkey has a build thread and i believe that the hydro boost bit is mentioned in there.
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You mean the exhausts with the 'Y' pieces with the plates that bolt on?
Ye those are the ones
I got mine from badlanz, a company in the U.S and they are electric cut outs, so you control with a swtich. You could even get ones with a manual pull mechanism, like you had in the late 60's Pontiacs and Camaro's as an optional extra, if i remember correctly. Bit cheaper and you don't have to worry about the electric motor burning out. With the bolt on plates, you could run a pipe to the side of the car with a plate bolted on to make it easier to bolt on and off. That's why i thought the valve system would be easier as you don't need to worry about access.
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The fuel pump sounds like a pain though, Im guessing there is one in the tank too.
I just checked and the fuel pump is different for the 2 engines, but they are only about £10 in the U.S, so no biggy to change it out. It's really easy as it bolts to the front corner of the engine, just 2 bolts, so will be pretty quick and easy. The only time you find fuel pumps in tanks if on Fuel Injected cars, so ours only have the one bolted to the engine. It looks like this will be the easiest of everything.
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I think it's safe to assume the engine mounts are gonna be in the same place. GM surly wouldn't have stuck them somewhere different on the chassis for different sized engines right? I guess all the chassis/shells came out the same.
Ye the subframe is the same so the mounts are in the same place, it's just the rubber will be cracked and in pieces, so will need to be replaced, ideally with poly ones. I think there's only a difference in mounting brackets between small block and big block. So when you get a replacement, as long as its for a v8 small block, it'll suit either engine you go for (for example if you went with a 305 first, then you know it'll be good for the 350 too).
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And yes my car is registered (it came over in 82
) I should have been more specific. I just didn't know if it was simply a case of telling the dvla about the engine change or if it was gonna give me grief.
ah ok, thought so, just wanted to be sure. Ye, easy in that case, same process as informing them of a colour change, so standard procedure for them.
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