Big Block in a GQ? What do you think?

[chimpboy]

As far as weight goes, sure a big block is heavier than a small block but consider the weight of the original TB42.

A big block would be pushing to weigh even 10% more than a TB42.

[Rogue Patrol]

Apparently a 454 is 650lbs with iron intake and heads....

A shade under 300kg's.

Anyone know what a TD or TB42 weighs?

[chimpboy]

I've got 288kg for a TB42, but I can't verify it.

[Rogue Patrol]

So I guess if u save 10kg's by changing to an alloy inlet then they're almost line ball forweight.

Would it be safe to assume a TD42 is heavier than a TB?

[Sandy Rut]

Would it be safe to assume a TD42 is heavier than a TB?

TD has an iron head TB is alloy. Dont have any figures on the TD but in short the answer is yes

[ats4x4dotcom]

Apparently a 454 is 650lbs with iron intake and heads....

A shade under 300kg's.

Anyone know what a TD or TB42 weighs?

That would be close, as a 350 is 580 lb with same.

The bigger the piston holes, the lighter the engine will be

[chunderlicious]

sent my td off yesterday. 420 approx. kilos (was actually a shade under 450) with motor complete with bellhousing clutch and radiator

[Rogue Patrol]

Sounds like there's one less reason to NOT have a big block then.....

We want pics and details of th conversion.

[jaybags]

I dont think anyone here who is suggesting options has ever had, or driven a big block. Ive had turbo intercooled 6's, hot 350's, and 383's and 400's, and 351's, and hot tb42', as well as 2 HSV's and now a VE SSV 6.0, and I can tell you.......

Once youve had BIG BLOCK there is no turning back........

As for weight, I got my big block down to way under a 350 weight will alloy components, and hand made extractors, all cheap, because people dont know much about big blocks and I also went to the trouble of moving the engine and gearbox etc back 3" to help with weight distrubution, which wasnt very difficult.

many years ago, someone I know had a 454 in a camaro, it had some suspension chnages, brake ducting, manual, and made over 600 rw hp, and it used to valve bounce at 9200 rpm, and late 80's 10 sec 1/4 miles on street tyres, through the mufflers was a quick car.

Ok am i missing something here. Is he building a drag car or a winch truck? And did you have all these motors in winch trucks did you? Have you ever done a winch comp?

[MUDRATGQ]

Gday ma454 would be great for somthing like ToughTruck because they have heaps of tourqe but for what you want ya beter off with somthing revvy like a 308 stroked to a 355 or a 350 chev

[chunderlicious]

I dont think anyone here who is suggesting options has ever had, or driven a big block. Ive had turbo intercooled 6's, hot 350's, and 383's and 400's, and 351's, and hot tb42', as well as 2 HSV's and now a VE SSV 6.0, and I can tell you.......

Once youve had BIG BLOCK there is no turning back........

As for weight, I got my big block down to way under a 350 weight will alloy components, and hand made extractors, all cheap, because people dont know much about big blocks and I also went to the trouble of moving the engine and gearbox etc back 3" to help with weight distrubution, which wasnt very difficult.

many years ago, someone I know had a 454 in a camaro, it had some suspension chnages, brake ducting, manual, and made over 600 rw hp, and it used to valve bounce at 9200 rpm, and late 80's 10 sec 1/4 miles on street tyres, through the mufflers was a quick car.

Ok am i missing something here. Is he building a drag car or a winch truck? And did you have all these motors in winch trucks did you? Have you ever done a winch comp?

he knows what hes talkin about dude

[turps]

[
Ok am i missing something here. Is he building a drag car or a winch truck? And did you have all these motors in winch trucks did you? Have you ever done a winch comp?

Jaybag
Darren used to race a turbo petrol 80series in atecos in the late 90's. And crap loads of race trucks have come out of Geelong. Its not a big place. So no doubt he has driven or seen most.

Berretta go the BB. You have seen and driven a heap of td42's and there rev range is only 1500-4500. Cant imagine the BB being any less.
Also the TD42 is a bloody heavy motot. I cant see one of these in std form being heavier. Let alone if it has some alloy bits.

[beretta]

Thanks for all the replies and discussion people, always good to get a few different points of view. I have pretty much decided to go ahead with it, just need to sort out some detail, like what conversion kit to use, clutch and fuel delivery, its a carby motor so will need to look at how best to run it, thats not my area anyway, will talk to a couple of mates who know much better than I.

Will also be having a chat to stool hopefully to see what traps or tricks there are with the conversion.

The motor is secured, it belongs to a very old mate and he basically said its mine if I want it.

[chunderlicious]

beret, will it not have to be straight gas for emissions? if not, holley make centre point injection if you want cheap. or there are many other injection systems for chevs, they just cost thousands.

[turbo gu]

When is this happening Can we wait till after cliff hanger Carby will suck on big angles! need to spend the coin on either EFI or Gas, but gas will be hard at white cliffs!

[ats4x4dotcom]

I dont think anyone here who is suggesting options has ever had, or driven a big block. Ive had turbo intercooled 6's, hot 350's, and 383's and 400's, and 351's, and hot tb42', as well as 2 HSV's and now a VE SSV 6.0, and I can tell you.......

Once youve had BIG BLOCK there is no turning back........

As for weight, I got my big block down to way under a 350 weight will alloy components, and hand made extractors, all cheap, because people dont know much about big blocks and I also went to the trouble of moving the engine and gearbox etc back 3" to help with weight distrubution, which wasnt very difficult.

many years ago, someone I know had a 454 in a camaro, it had some suspension chnages, brake ducting, manual, and made over 600 rw hp, and it used to valve bounce at 9200 rpm, and late 80's 10 sec 1/4 miles on street tyres, through the mufflers was a quick car.

Ok am i missing something here. Is he building a drag car or a winch truck? And did you have all these motors in winch trucks did you? Have you ever done a winch comp?

go away you annoying young man, you obviously have no idea what your talking about.


As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

[jaybags]

Young man yes and learning more yes. You seem to have a bit of a ego problem and a very rude manner to go with it "old man". I do appologise for questioning your envolvement in the off road scene and in no way did i want to raise your blood pressure. And you are correct i am not a expert, but you do learn new things every day. Sites like this are lucky to have people like you on here as the world of off road would not survive without you. Thanks for sharing your knowledge.

[LOCKEE]

Young man yes and learning more yes. You seem to have a bit of a ego problem and a very rude manner to go with it "old man". I do appologise for questioning your envolvement in the off road scene and in no way did i want to raise your blood pressure. And you are correct i am not a expert, but you do learn new things every day. Sites like this are lucky to have people like you on here as the world of off road would not survive without you. Thanks for sharing your knowledge.

Darren has an idol.

[beretta]

As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

I am going to drop in and have a chat for sure, interested to learn more about the above set up. Thanks for the help!

[ats4x4dotcom]

As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

I am going to drop in and have a chat for sure, interested to learn more about the above set up. Thanks for the help!

No worries, see your url's in the sig, was it you who had to help David winch his scissor lift back onto the footpath, while the signage went on ?

[ats4x4dotcom]

Young man yes and learning more yes. You seem to have a bit of a ego problem and a very rude manner to go with it "old man". I do appologise for questioning your envolvement in the off road scene and in no way did i want to raise your blood pressure. And you are correct i am not a expert, but you do learn new things every day. Sites like this are lucky to have people like you on here as the world of off road would not survive without you. Thanks for sharing your knowledge.

Darren has an idol.

I feel air movement up my rectum....

[beretta]

As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

I am going to drop in and have a chat for sure, interested to learn more about the above set up. Thanks for the help!

No worries, see your url's in the sig, was it you who had to help David winch his scissor lift back onto the footpath, while the signage went on ?

It was I, heavy recovery specialist, pretty funny when he bogged it in front of the shop, he had no hope from the start, but he was keen to have a go! Another sign writer did exactly the same thing last week even after I told him he wouldn't make it more than a foot onto the garden!

[jessie928]

As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

I am going to drop in and have a chat for sure, interested to learn more about the above set up. Thanks for the help!

just run straight gas man.

dont waste your money on fuel injection!!!!

run msd 6al for ignition ( or DIS for more $$) and twin impco 425's ontop of a spreadbore throttleplate. ( single plane alloy manifold)

you can play with a tunnelram and twin squarebore baseplates but you wont have as much low down torque as a single throttleplate dual mixer setup.
cheers,m
Jes

[baxy]

Hey paul,
Does this mean you wont be needing a certain TD42 anymore??
Hmmm.

[beretta]

As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

I am going to drop in and have a chat for sure, interested to learn more about the above set up. Thanks for the help!

just run straight gas man.

dont waste your money on fuel injection!!!!

run msd 6al for ignition ( or DIS for more $$) and twin impco 425's ontop of a spreadbore throttleplate. ( single plane alloy manifold)

you can play with a tunnelram and twin squarebore baseplates but you wont have as much low down torque as a single throttleplate dual mixer setup.
cheers,m
Jes

One small problem, its hard to get gas on a station in the middle of the outback, has to be petrol. Thanks for the suggestion tho jessie.

[beretta]

Hey paul,
Does this mean you wont be needing a certain TD42 anymore??
Hmmm.

Its a possibility, I want more ponies!

[jessie928]

As for a "revvy" small block, still no match for a big block in the all round stakes, and a 850 Q jet carby off a buick 455 is a better unit to set up for off road use, with small primaries for good signal down low in the RPM, and you can fit parts which prevent fuel splashing over in rough stuff as well. [been there done that]

Holley isnt worth the effort, wiull never run right off road.

I am going to drop in and have a chat for sure, interested to learn more about the above set up. Thanks for the help!

just run straight gas man.

dont waste your money on fuel injection!!!!

run msd 6al for ignition ( or DIS for more $$) and twin impco 425's ontop of a spreadbore throttleplate. ( single plane alloy manifold)

you can play with a tunnelram and twin squarebore baseplates but you wont have as much low down torque as a single throttleplate dual mixer setup.
cheers,m
Jes

One small problem, its hard to get gas on a station in the middle of the outback, has to be petrol. Thanks for the suggestion tho jessie.

your gona take a 454bb equipped truck running on petrol into the outback? get ready for a MEAN MEAN fuel bill

in any case its easily solved by fitting an entire carb under the impco 425's instead of just the baseplate . No electronics, basic setup, ultra reliable.

Jes

[beretta]

um yes true, but its only to race not on tour, but yes big fuel bill expected.

[baxy]

Yeehah!! Go the big block and drive it like you stole it!!
And then send me your old turbo diesel.
Sounds like a plan!!

[bogged]

Hey paul,
Does this mean you wont be needing a certain TD42 anymore??
Hmmm.

Its a possibility, I want more ponies!

http://www.azspeed.com/ramjet502fui.html
fuel injected 502? No carb issues on hills. and more sniff.