All these GM LS conversions but no 2JZGTE conversion??
- Thread starter dousty
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
- Thread starter
- #22
Yeah. Also, there seems to be a big difference between the low end performance of the 5.3 you guys in America are using and the 5.7 we got in Australia.
http://www.hotrod.com/how-to/engine/1307-ls-cam-test-comparison/
http://www.hotrod.com/how-to/engine/1307-ls-cam-test-comparison/
Bama4door
Supporting Vendor
5.3's come in mid size trucks and suv's....which come with completely different heads, cam, intake etc compared to the other LS engines that come in cars. we also have every single one of those engines listed in that article you posted that come in differeng GM cars that are the same if not better than the austrailian 5.7...not sure what you were trying to say with that comment.
Holden is owned by GM. The 5.7 they have in Oz is the LS1.
- Thread starter
- #26
I didn't understand the comments in this thread referring to the excellent low rpm torque of the 5.3, due to only having experience with the Australian delivered LS1 which is rubbish below 2500rpm. The article I linked explains a lot.
I dont see a problem with the performance of the us model 5.3 in the us market...its not a big block stump puller but performs well, as does the 5.7 Chevrolet. In stock form both of these engines in their various configurations make good choices for swapping into a FJ60.
I have a purely stock 1999 GM 5.7 Vortec V8 out of a 1999 GM SUV (Yukon), engine has plenty of power.
Some perceptions may be influenced as to the ring and pinion setup and if using a auto or manual transmission.
Small block engines do make more power in the upper rpm range...vs a big block.
I did not see in the article a good graph showing the rpm range vs torque.
Sure if you mod the engines and change camshafts you can increase power/torque.
The 6.0 GM gas engine is the 3/4 and 1 ton version...maybe you want to look at one of those or the 6.2. Again ..generally speaking the small blocks need more rpm to generate torque numbers.
I have a purely stock 1999 GM 5.7 Vortec V8 out of a 1999 GM SUV (Yukon), engine has plenty of power.
Some perceptions may be influenced as to the ring and pinion setup and if using a auto or manual transmission.
Small block engines do make more power in the upper rpm range...vs a big block.
I did not see in the article a good graph showing the rpm range vs torque.
Sure if you mod the engines and change camshafts you can increase power/torque.
The 6.0 GM gas engine is the 3/4 and 1 ton version...maybe you want to look at one of those or the 6.2. Again ..generally speaking the small blocks need more rpm to generate torque numbers.
Last edited:
I enjoy the V-8 more in front of an auto than a manual. It's a powerband thing. You do need deep transfer case gearing to really make the best of it. Put a 5.7 in front of a US 4speed and life on the trail isn't good. Put in in front of a 700r, it's better. Put it in front of a doubler and sit back and enjoy. We had a 5.7 tbi mated to a 2.7 Klune to a 4:1 Atlas. I'm unsure if it could be stalled. Throttle pedal was optional and unnecessary.
TS888
Almost the person my dog thinks I am...
I've pondered a GM Atlas LL8. 4.2l DOHC I6, 270-290hp and 275 lbft. Pretty much where the 2F would have evolved is Toyota hadn't caught V8 disease.
