[M72]

Now before I begin me and my pops already done a v8 swap and this astro already a head turner being that it is chopped 4 inches and dropped 3in .. but now it's time out with the old in with the new I mean we already have the know how obviously but I'm jus curious on what others have went with as far a certain parts ...

What I have :
- 4th gen 5.3 with the harness and all front. drive accessories

What I need to ask about :
- which headers are best fit ?
- Will the original truck oil pan be ok or go. with a f-body one?
- best radiator for fitment ?
- will I need different drive accessories in. order for it to all fit in there or maybe jus. different locations on them?
- also the best bang for buck fuel sytem?


I planned on going with a fbody oil pan .. grabbing a fast 92mm intake also slapping these genx 220 heads on her ... and tbh my dad's often talked about putting the motor behind my seats and I want to tub it as well but that might be further down the road

 

[markmitch]

there are no known headers for that engine in the Astro/Safari. If your van is rear drive then any oil pan should fit.

 

[CopperFiremist]

Check out my build thread I honestly wouldn't even waste your time with a 5.3L. Read my build thread and you'll understand why. I would just do a nice 5.7L vortec build. Unless your going with a crazy 5.3L the amount of work just isn't worth it IMO.

 

[M72]

Ok thanks for the information

Check out my build thread I honestly wouldn't even waste your time with a 5.3L. Read my build thread and you'll understand why. I would just do a nice 5.7L vortec build. Unless your going with a crazy 5.3L the amount of work just isn't worth it IMO.

Well like I said my van is one of a kind so the amount of work isn't a problem it's my summer vehicle and priceless to me and also I have a 350 in it already ... but that's why I was asking the questions about parts because I've always wanted to tub it and in order to do that I'd have to build a frame and ne telling my dad this he says I've always wanted to put the motor behind the seats . Lol but the funny thing is he was serious and has the know how lol

 

[Bikley]

If you put the engine behind the seats you'd better put wheelie bars on it, because you won't be able to keep the front wheels on the ground. 😃

 

[M72]

Then it wouldn't take much motor to get me going huh 😉

 

[GasTungstenArc]

With the extra width and extra deck height of the LS engines, you probably want manifolds that are tucked snugly against the block. Hooker has a nice looking set of cast manifolds for LS type engines, and that might fill the bill for you.

 

[stent]

post some pictures of what you've already got ......... then lots more of what you're going to be doing !!!!!!!!!!!