L98 options???
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The limiting factor of the L98 is the intake. It will make a ton of torque at arelatively low RPM (really long runners), but falls off to the point of uselessness at anything over 5K (assuming 350cid). So with that in mind, you will be more or less waisting money on fancy short block parts and/or heads if you are going to keep the intake.
If he is set on keeping the intake, your best bet would be a mild cam, ported stock heads (they should be the alluminium L98 versions if the motor came in a Vette), nice headers, and maybe a better piston - but only if he wants to spray a little. Otherwise, I doubt you would ever make enough power to hurt the factory shortblock as long as it's tuned correctly.
TPIS sells a replacement intake for the L98 called a "Mini Ram". It looks very similar to an LT1 intake. That opens up a hole new set of options for you...but you will still be limited to tuning it with the stock computer which is the next biggest limiting factor to the L98!!
The quikest, cheapest, easiest way to power would be to smack a Performer RPM and a good 750 on there. That would be my advice.
I have a completely worked L98 setup and believe me, I've been down this road. If you need more specific advice give me a call.
Brandon 813 3680685
If he is set on keeping the intake, your best bet would be a mild cam, ported stock heads (they should be the alluminium L98 versions if the motor came in a Vette), nice headers, and maybe a better piston - but only if he wants to spray a little. Otherwise, I doubt you would ever make enough power to hurt the factory shortblock as long as it's tuned correctly.
TPIS sells a replacement intake for the L98 called a "Mini Ram". It looks very similar to an LT1 intake. That opens up a hole new set of options for you...but you will still be limited to tuning it with the stock computer which is the next biggest limiting factor to the L98!!
The quikest, cheapest, easiest way to power would be to smack a Performer RPM and a good 750 on there. That would be my advice.
I have a completely worked L98 setup and believe me, I've been down this road. If you need more specific advice give me a call.
Brandon 813 3680685
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The cheapest route is the Lt1 intake though. that Mini ram is far from cheap. Doing your comob once and having it tuned once and leaving it alone is the cheap way to go too. No point in going stand alone except to get rid of the batch fire setup and wanting the ability to grow. My boss and a cutomer both have "L98 vettes"
The customer has a 400ci motor with a dart block and pretty much all the best internals too. It has the 225cc AFR, the Mini Rim, very healthy roller cam with AFRs hydra rev kit. BBK throttle body, 36# Accel injectors, long tubes with 1 3/4" primaries, Plus uses FAST for a tuner. It went 11.8 running outta fuel with 30# injectors witht he stock 2.73 gear and a the stock 2.25" rear y pipe. As soon as it gets retuned again and he has the money for it, hes going to do a NOSzle system witha 200 shot on top of it. shoulld net him low 10s easily.
My boss setup which has been sitting on a stand for a 3 years is a 421ci motor with AFR 255cc with the bigger valves and competition port job, Mini ram intake, 42# injectors, Any even healthier roller cam with the hydrda rev kit, plsu all the other goodies with FAST for a standalone as well. Hes going to the NOSzle system sometime but probably 150 shot. He is limited by his block. Its a factory 400 block with good internals.
Both will have good street manner and run a built 700r4 tranny with dana 44 rear ends
The customer has a 400ci motor with a dart block and pretty much all the best internals too. It has the 225cc AFR, the Mini Rim, very healthy roller cam with AFRs hydra rev kit. BBK throttle body, 36# Accel injectors, long tubes with 1 3/4" primaries, Plus uses FAST for a tuner. It went 11.8 running outta fuel with 30# injectors witht he stock 2.73 gear and a the stock 2.25" rear y pipe. As soon as it gets retuned again and he has the money for it, hes going to do a NOSzle system witha 200 shot on top of it. shoulld net him low 10s easily.
My boss setup which has been sitting on a stand for a 3 years is a 421ci motor with AFR 255cc with the bigger valves and competition port job, Mini ram intake, 42# injectors, Any even healthier roller cam with the hydrda rev kit, plsu all the other goodies with FAST for a standalone as well. Hes going to the NOSzle system sometime but probably 150 shot. He is limited by his block. Its a factory 400 block with good internals.
Both will have good street manner and run a built 700r4 tranny with dana 44 rear ends
Thread Starter
refinish artist
Joined: May 2003
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Thanks guys,were looking into more of doing h/c/i car with the option of a blower down the road.Maybe a 9 to 1 motor,were trying to put together a h/c/i searching over the internet but it's pretty confusing trying to figure out what to go with.
Brandon,thanks for the good advise,seeing I don't know shit about these motors or cars I'm kinda stumped on what to tell him to buy.If you were to freshen the stock bottom end with forged pistons,what could we do for heads and intake?We were looking at a Lignfelter(sp)? intake online but I'm not sure what heads to get first?We like the AFR's but what size?I'll continue to search and if you could help any further it would be appriciated.Also,the tranny needs to be gone through and built,I talked to Marc Shakesphere,cool guy,it prolly will go there,any other opinions?
Brandon,thanks for the good advise,seeing I don't know shit about these motors or cars I'm kinda stumped on what to tell him to buy.If you were to freshen the stock bottom end with forged pistons,what could we do for heads and intake?We were looking at a Lignfelter(sp)? intake online but I'm not sure what heads to get first?We like the AFR's but what size?I'll continue to search and if you could help any further it would be appriciated.Also,the tranny needs to be gone through and built,I talked to Marc Shakesphere,cool guy,it prolly will go there,any other opinions?
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Joined: Jan 2004
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Just remember if you go with the LT1 intake you will have to address the reverse cooling issue. I have seen people who convert the LT1 intake to the standard cooling flow for the L98 stuff, but have no personal experience with it.
As far as heads, if he really wants to buy an aftermaket set I would recomend the Trick flow 23 degree head. It will make great power unported and leaves plenty of room for growth. The AFR is a fine choice, but is more expensive and I haven't seen that they make any more power than The Trick Flows.
Also remember that if he intends to go with any kind of boost in the futre, you will need to take the compression into account.
In order to be more specific, I would probably need to know just how much power he wants to make or how fast...etc.
Also, I would personally stay away from the Lingenfelter "Super Ram" as it's known. It has the potential to make more power than the stock piece, but is generally overpriced from what I've seen and is a real ass-pain to work with.
As far as heads, if he really wants to buy an aftermaket set I would recomend the Trick flow 23 degree head. It will make great power unported and leaves plenty of room for growth. The AFR is a fine choice, but is more expensive and I haven't seen that they make any more power than The Trick Flows.
Also remember that if he intends to go with any kind of boost in the futre, you will need to take the compression into account.
In order to be more specific, I would probably need to know just how much power he wants to make or how fast...etc.
Also, I would personally stay away from the Lingenfelter "Super Ram" as it's known. It has the potential to make more power than the stock piece, but is generally overpriced from what I've seen and is a real ass-pain to work with.
Last edited by Dead Hooker; Apr 20, 2005 at 05:48 PM.
Thread Starter
refinish artist
Joined: May 2003
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Ok,so I looked at the Trick-flow23's,seems like a good choice,now do I tell him to go with a LT1 stock intake?How well will it flow to the heads?If we decide on a stoker motor insted of a blower,what can this block handle for power.He wants to make in the neighborhood of 500fwhp,again he's not looking to build a race car just to make this thing move out pretty good,whats the best,and I say best not cheapest way to that.Another thing,how much can these fuel systems and computers run power wise,it obvious he'll need injectors and a fuel pump,what else are we looking at?Thanks again Brandon for the help.
Last edited by 351coupe; Apr 22, 2005 at 05:06 PM.
Bolt-On 2v GT
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the lt1 intake I believe flows equally to the top of the line after market ones and is EASY as hell to work with, having pulled mine off about 4 times I can say this honestly
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I'm startin' to get excited about Dwayne's Vette. Now if only I could get ahold of him to ask what he's gonna decide to do.
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