iroc-z_23
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i'm wondering if you can put lt1 heads and intake on an 87 tpi 305? just take the 305 heads and tpi off and stick the lt1 stuff on will i have any problems?
thanks, Kegan
thanks, Kegan
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http://www.camaroz28.com/forums/showthread.php?t=570520
lt1 heads are reverse flow cooled so you would need to modify the heads, waterpump or both
http://www.fullsizechevy.com/forums/...gen-1-sbc.html
^
theres how one guy converted the heads and intake for sbc
~Steven
lt1 heads are reverse flow cooled so you would need to modify the heads, waterpump or both
http://www.fullsizechevy.com/forums/...gen-1-sbc.html
^
theres how one guy converted the heads and intake for sbc
~Steven
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being a 305 vs a 350 doesn't matter?
As long as your valves dont hit the cyl walls you shouldnt have a problem
Tuning it for the extra flow and compression changes is your job
Tuning it for the extra flow and compression changes is your job
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i'm getting it real cheap and all the specs are better than tpi...why wouldnt you want to?
five7kid
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As a formerly active member might have said in a situation like this, "A lot of maze for very little cheese."
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so what would you suggest is the best intake setup for a tpi then? the intake is my main concern
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Jim85IROC
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On a 305? The stock TPI will be just fine. Your money is better spent on something else, like the machine work on a nice 350 block.
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the intake will be going on a built 355 with brodix aluminum heads with a mild-hot cam. the tpi really does not give me top end and i'm looking for a better solution
five7kid
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Holley/Weiand Stealth Ram.
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Quote:
Curious why you started off talking about "on an 87 tpi 305", then.Originally Posted by iroc-z_23
the intake will be going on a built 355 with brodix aluminum heads with a mild-hot cam. iroc-z_23
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because i have 2 camaro tpi's, and if i could just slap on some lt1 heads and intake on the 305 that would be good for me. but seeing that maybe thats not the way to go i have seen people swap the lt1 intakes and i could atleast use the intake for the 355 since i could get the lt1 intake cheap
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Quote:
is there somewhere that shows some flow numbers on this intake?Originally Posted by five7kid
Holley/Weiand Stealth Ram. Quote:
much more doable. still not a simple bolt on swap, but its manageable.Originally Posted by iroc-z_23
i have seen people swap the lt1 intakes and i could atleast use the intake for the 355 since i could get the lt1 intake cheap however the Stealth Ram will bolt right up AFAIK. never messed with one.
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which do you think is the way to go though...HSR or LT1?
If you can find one get a stealth ram or mini ram since they're already setup for gen 1 SBC
And please resize are altogether get rid of the photo in your signature, that's ridiculous.
And please resize are altogether get rid of the photo in your signature, that's ridiculous.
Quote:
Sure you could but one question ,Originally Posted by iroc-z_23
i could just slap on some lt1 heads and intake on the 305 where is your water outlet to radiator going to be ?

LT1 intake has no water in it , no thermo housing either
You can't put a LT1 waterpump on a reg SBC
Quote:
Cheap option if you can do the machine work required yourself ; if you have to pay to get it done ,a aftermarket intake is prob cheaper and no leaksOriginally Posted by iroc-z_23
i have seen people swap the lt1 intakes and i could atleast use the intake for the 355 since i could get the lt1 intake cheap Quote:
275 CFM out of the boxOriginally Posted by iroc-z_23
is there somewhere that shows some flow numbers on this intake? Quote:
where is your water outlet to radiator going to be ?
LT1 intake has no water in it , no thermo housing either
You can't put a LT1 waterpump on a reg SBC
have to use something like this and plumb lines to the front/back of the heads.Originally Posted by vetteoz
One question ,where is your water outlet to radiator going to be ?

LT1 intake has no water in it , no thermo housing either
You can't put a LT1 waterpump on a reg SBC
http://www.jegs.com/i/Weiand/925/7134/10002/-1
Quote:
http://www.jegs.com/i/Weiand/925/7134/10002/-1
I know how to do it ,Originally Posted by TexasLT1
have to use something like this and plumb lines to the front/back of the heads.http://www.jegs.com/i/Weiand/925/7134/10002/-1
I just wondered if the OP did as he was just going to "slap on " some heads and intake

With the LT1 intake conversion most tap the intake to line up with the rear coolant ports and run from there
A bit more than that actually
The 4 corner bolt holes are the reference but need to be reangled. The middle 8 are completely off and need to be filled/redrilled
The EGR mount much be cut of and the old passages closed by welding or JBweld. The intake gasket flange must have an extension added in the center near the head EGR ports or exhaust gasses will dump into the lifter valley
A hole must be accurately cut for the distributor and the floor built up and leveled for a proper seal
Most tap the rear crossover ports for the coolant lines because the fronts interfere with the TB cam. A remote T-stat housing must be used. It can be home made or the aftermarket unit posted above. I used 2 coolant lines for just the engine and one additional if you retain the heater core
TPI wiring will fit, the MAP, IAT and CTS wiring must be extended to reach, but the rest will fit fine. The TPI TB will bolt up and function well but for the best throttle cam motion use a LT1 TB. This requires updating the TPS and IAC connectors to the newer styles. 7 solders and thats done
A 93 throttle bracket must be used if you have a 700R4. It wont fit directly but a file will make your TPI cable fit. Older TPIs had shorter TV cables which wont reach the bracket. Use a 90-92 TV cable or go with the 93 piece
To clear the dist and AFPR must be used. Use anything that fits a LT1
Modify a set of stock quick disconnect lines to fit the fuel rail or buy fittings and build your own. PNs for fittings can be seen here. The diagram goes all the way to the tank, most just replace up to the frame rail in the engine bay
https://www.thirdgen.org/forums/ltx-...formation.html
If you need specific pics of anything, Ive got tons

The 4 corner bolt holes are the reference but need to be reangled. The middle 8 are completely off and need to be filled/redrilled
The EGR mount much be cut of and the old passages closed by welding or JBweld. The intake gasket flange must have an extension added in the center near the head EGR ports or exhaust gasses will dump into the lifter valley
A hole must be accurately cut for the distributor and the floor built up and leveled for a proper seal
Most tap the rear crossover ports for the coolant lines because the fronts interfere with the TB cam. A remote T-stat housing must be used. It can be home made or the aftermarket unit posted above. I used 2 coolant lines for just the engine and one additional if you retain the heater core
TPI wiring will fit, the MAP, IAT and CTS wiring must be extended to reach, but the rest will fit fine. The TPI TB will bolt up and function well but for the best throttle cam motion use a LT1 TB. This requires updating the TPS and IAC connectors to the newer styles. 7 solders and thats done
A 93 throttle bracket must be used if you have a 700R4. It wont fit directly but a file will make your TPI cable fit. Older TPIs had shorter TV cables which wont reach the bracket. Use a 90-92 TV cable or go with the 93 piece
To clear the dist and AFPR must be used. Use anything that fits a LT1
Modify a set of stock quick disconnect lines to fit the fuel rail or buy fittings and build your own. PNs for fittings can be seen here. The diagram goes all the way to the tank, most just replace up to the frame rail in the engine bay
https://www.thirdgen.org/forums/ltx-...formation.html
If you need specific pics of anything, Ive got tons


