I have a 95 safari that has cpi injection on it and a 98 astro that has mpi injection.... the 98's engine is toast but the injection system is good.... can i slap the 95's block and heads into the 98's body and bolt up the mpi injection setup rather then the shitty cpi??
Thanks
98 injection on 95 block???
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LiftedAWDAstro
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Re: 98 injection on 95 block???
Don't quote me on this but I think the 96+ vortec injection is a different head and bolt pattern. Basically the intake plenum will not bolt to the older heads. This is only what I think and not any where near 100% confident. 
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1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
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2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition
Mileage spreadsheet
Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy
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Gordon
Topic author - I finally get the smurf thing
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Re: 98 injection on 95 block???
See i was pretty sure of that same thing... can't remember but i think the pre-vortecs are 23° and the vortecs are 19° or 21°.
I'm still researching this as the 95' was/is an odd ball year in these vans.
I'm still researching this as the 95' was/is an odd ball year in these vans.
1995 GMC Safari 5.7L RICE EATER... MUHAHAHAHA
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SoCalli V8
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Re: 98 injection on 95 block???
I know for sure that there is a difference on the V8 motors concerning the intake bolt pattern, between Vortec and non Vortec. So if this is true for the V6`s, then you will have to swap the heads and intake onto your `95 block.
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A British Wanker living in So KarlyFornia.
My Astro tows my toys to Glamis sand dunes http://www.youtube.com/watch?v=jp2pqjQtpso
First ever canal jump at Glamis http://www.youtube.com/watch?v=oXZjM84x_Xc
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Gordon
Topic author - I finally get the smurf thing
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Re: 98 injection on 95 block???
Learned something today... in the V6's anyway... there is 2 generations of the "vortec" line.
They seem to classify the 87-94 as gen 1 and 95-05? (whenever they quit making them) as gen 2.
Worst case scenario i have to swap over the heads anyhow... which is ok because it's likely a good idea to check / replace the timing chain anyhow as it has 260,000kms on it.
They seem to classify the 87-94 as gen 1 and 95-05? (whenever they quit making them) as gen 2.
Worst case scenario i have to swap over the heads anyhow... which is ok because it's likely a good idea to check / replace the timing chain anyhow as it has 260,000kms on it.
1995 GMC Safari 5.7L RICE EATER... MUHAHAHAHA
Re: 98 injection on 95 block???
Gordon,Gordon wrote:Learned something today... in the V6's anyway... there is 2 generations of the "vortec" line.
They seem to classify the 87-94 as gen 1 and 95-05? (whenever they quit making them) as gen 2.
Worst case scenario i have to swap over the heads anyhow... which is ok because it's likely a good idea to check / replace the timing chain anyhow as it has 260,000kms on it.
Just kind of thinking out loud and might learn something too.I am not sure if the exhaust manifolds are the same here(because of the head angles changed,would think the exhaust ports changed and different manifolds where used) and I would guess if the injectors are not the same system,a computer swap would be needed as well.
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Rochester,NY
1999 Sonoma 4.3 5 speed-Rufus
1989 Astro-Ole Yellar cancelled-still selling off parts
1985 Astro-shop van R.I.P. my friend
1994 Astro LT RWD W4.3 rod knock RIP
1982 Winnebago single rear wheel-Chevy 350 Scraped 1/28/13-broken dreams......
Rochester,NY
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GnarliSafari
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Re: 98 injection on 95 block???
starting to sound like it would be easier to swap in a v8....
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03 Chevy Silverado 2500HD, LB7 Duramax Diesel, 5 speed Allison Tranny, Crew Cab Long Bed, no muffler or cat, 4 inch turbo back and side piped. not too many other mods yet, also addicted to AMSOIL.