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Re: Engines - Ford vs GM
Knightjp #444610 February 08th 2011 9:48 pm
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thats sweet


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
AdSense long
Re: Engines - Ford vs GM
Knightjp #444624 February 08th 2011 10:22 pm
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Originally Posted by Knightjp
Now I've heard everything... A Ford owner who suggests a GM engine. shocked

Have you had any problems with the engine on your van????


You've not heard it all quite yet... I still bleed Mopar once in a while. laugh

I've not had any problems with the V10 other than regular maintenance issues. I've had to replace the water pump and need to replace the alternator in future sometime. These engines do have a weak spot - spark plug threads that are easy to strip out. I changed the plugs earlier this year and, knock on wood, have yet to blow a plug. Wasn't easy, mind you...
[Linked Image]
[Linked Image]

As for a Ford owner recommending a GM engine - when one is looking at doing an engine swap, simplicity is worth its weight in gold.


Dave Pershing

[Linked Image]
Re: Engines - Ford vs GM
Grems4Ever #444656 February 09th 2011 12:50 am
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Originally Posted by Grems4Ever

As for a Ford owner recommending a GM engine - when one is looking at doing an engine swap, simplicity is worth its weight in gold.

So would you recommend a GM LS over a Ford modular V8???

Re: Engines - Ford vs GM
Knightjp #444712 February 09th 2011 10:42 am
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Originally Posted by Knightjp
Originally Posted by Grems4Ever

As for a Ford owner recommending a GM engine - when one is looking at doing an engine swap, simplicity is worth its weight in gold.

So would you recommend a GM LS over a Ford modular V8???


I don't recommend either of them. Both engines cannot run without a ton of electronic controls. When doing a swap like you are considering, computer controlled engines means a lot more complexity which, in turn, means a lot more money involved.

Before you dive into a Ford Mod motor installation, you need to take lots of measurements and check the physical dimensions of the engine. These engines are large and complicated. There's a reason you see tons of LS and previous generation GM and Ford small blocks in hot rods of all sorts, but very few Modular Ford engines.

If I were in your shoes, I'd be looking at the 351W Ford with C6 automatic.


Dave Pershing

[Linked Image]
Re: Engines - Ford vs GM
Grems4Ever #444890 February 09th 2011 6:24 pm
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So far I've downloaded the entire parts catalog for both GM Performance and Ford Racing. I'm be looking in to the finer details to base my decision on...

I was wondering whether I should be looking in Roush's catalog too.

Re: Engines - Ford vs GM
Knightjp #445184 February 10th 2011 3:52 pm
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I was again searching online for more info and came across this link...
http://www.camaroz28.com/forums/showthread.php?t=472223

Over there I saw the following quote....
Originally Posted by LT193
Re: Modular ford VS LS1 Gm powerplants.
Well first some of the advantages they do have over our motors.
1: no noise at idle and smoother running engine.
2: better gas milage in stock trim and modified trim.
3: less maintanance when it comes to the valve train.
4: Less compression stock which enables better boosting.
5: Overhead cam ability which enables high RPMs.

Advantages of LS1 motor
1: Cubic inches over fords modular 346 to 281.
2: more compression to help the NA guys (like me)
3: Great flowing heads and intake, unlike a mod motor an ls1s intake flows well.
4: Great bottom end that is probably stronger then your adverage 281 Gt motor (unless compared with cobra motor)
5: more aftermarket and cheaper parts.

These are some things i can think of right off hand, although i must say a 4 valve head on a cobra motor makes exceptional flow over an LS1 head. I have seen 320 CFM out of a 4 valve head, and i know that it is capable of more. This is a limiting factor with LS1s, even know they flow almost as well with half the valves i dout that they could ever flow as well as a 4 valve head. Anyone have any ideas yet?


... and this guy is a GM fan?

Re: Engines - Ford vs GM
Knightjp #445193 February 10th 2011 4:47 pm
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A modular engine will NOT fit in an older van, they are much too wide, the newer vans went through serious tooling to fit them, they are set forward to allow room in the passenger compartment. Yes they have a lot of wiring and electronics, but are far more efficient than the older engines, but I'd go diesel if I was serious about efficiency and power. Dad's neighbors son graduated a tech college, they had to build a diesel before graduation, I'm talking design one, he worked with Ford on fixing the 6.0 and 6.4 that replaced it, got me wanting a smoker.

Re: Engines - Ford vs GM
maples01 #445607 February 12th 2011 7:06 am
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Newer engines do have a lot to deal with; but it is agreed that they are more efficient. Reliability is another issue. We know that the older engines use more tested and tried technologies.
If space was an issue and I wanted a newer engine design, I'd probably would have to go with a GM LS engine. God knows they're a bit more simpler to deal with and use the old pushrod technology so they're obviously smaller in size.
Could be worse, I could have opted for an engine off a Toyota Hiace. Those are the same size as the stock VWs, practically indestructible and reliable to the ends of the earth; but I wanted something that sounds much more cooler.. ;)

The VW stock uses a 2.0L 4 Cylinder diesel to a 2.4 inline 6 Cylinder diesel.
I was hoping to swap the diesel engines for petrol V8.
I wanted to use a V8 from GM or Ford because their reputation. Choosing between the two however is a hard choice for me.


Re: Engines - Ford vs GM
Knightjp #445670 February 12th 2011 4:08 pm
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I've narrowed my choice among these:

  1. 427 Cobra engine built on a Z351 block
  2. 5.0L 415HP Mustang modular engine
  3. 427 Cobra engine built on BOSS 351 block
  4. GM LS6
  5. GM LS3
  6. GM ZZ427 Big block
  7. GM ZZ454 Big Block

I've put a poll out.... and I think I have a feeling which is going to get the most votes.... ;)

Another question is about the compression ratios. Which would be better... 11.0:1 or 10.4:1???
I notice that all the newer engines (LS and Mobular) have higher compression ratios...

Which engine should I use??
single choice
Votes accepted starting: February 12th 2011 4:07 pm
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