have a l98 block out of a early 90s box van. I bought a intake/fuel injection set up off a 87 corvette, what heads will work and run will with that intake

 

A van 350 is an LO5, not an L98. You can use the swirl-port heads, you'll get maybe 220 HP and it'll peak at 4000 RPM. If you want more, you need to find some pre-Vortec 300-HP 350 crate engine heads. 64cc, 1.94 / 1.50" valves, and centerbolt valve covers, but NOT swirl-port. I forgot the casting number. They are rare, even though a few made it into marine use. Neither is a good solution, but both should be cheap and easy. I'd run '081 heads from an LB9, but you may need higher octane if you keep the LO5 cam.

 

It is an L98. It's stamped on the block

 

Cute, but even legit L98s never had that RPO code anywhere on the block. Not cast in, not stamped in. L98 was for the paperwork. However, good luck differentiating a truck block from a Corvette block from a Trans Am block from a police caprice block except by the suffix code stamped on the RF deck above / behind the water pump pad. If you found L98 stamped, it wasn't GM who did the stamping. Never wise to argue with true experts just trying to win your argument. The best way for you to save face is to admit when you stand corrected.

 

I listen here *******, it's a ****in l98. Don't try and correct me again.

 

not an l98 get over it bro


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Can ya feel the love...........................................................lmao

 

I know what I got. None of you have answered my god damn question, just dwelled on stupid ****, I know for a fact it's an l98 so all y'all need to shut the **** up and tell me what heads will work with that intake

 

.

 

not an l98. but to answer your question. Any chevy small block head will fit any chevy small block. Look for the 193 casting numbers I'd recommend those for your build.


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The first thing you should buy to make that intake work is 65# /hr injectors. Once you get those installed come back and ask for cam advice


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Get the 113 Corvette heads and a LT1 cam.

 

WRONG.....Stuff the right cam in that engine and it will make 280-300 HP at the flywheel all day long.

I put a production GM LT4 camshaft, 1.6:1 full roller rockers, edelbrock 3704 intake, 1" open center spacer, ultimate TBI moded TBI, doug thorley tri-ys, and tuned my own prom chip. The result was 255 RWHP/308 RWTQ, using STOCK swirl ports. This was with a massive mechanical engine fan, 2 piece driveshaft with carrier bearing, and a 9.5" 14 bolt corporate rear-end.

 

L98 only came in corvette and had aluminum pistons in some occasion and aluminum heads in some occasion from factory you have many replies about other members that know a thing or two about l98 im prety sure they are right unless you can prove it and have facts

 

L98 came in vettes camaros and firebirds. Mid to late year 86 vettes got aluminum heads on L98. in 87 L98s started in the f-bodies but had the iron heads.

 

L98 only came in corvette that is were it gets thrown in there yes it is simliar but our is designted the B2L

 

Quoting the great George Carlin: “Never argue with an idiot. They will only bring you down to their level and beat you with experience.”

Just saying.

 

I have heard that before

 

Wonder if that L98 van had TPI being it was certainly an L98 stamped and all.

 

L98 van you say..... With ported 906 heads, a ported edelbrock 3817 base, production LT4 cam, 1.6:1 roller rockers and Doug Thorley Tri-Y headers into a dual 2.5" exhaust setup it was fun to show GT Mustangs, 5.3 trucks and those 6.0 Escalades and ML550 mercedes SUVs what an old G-van tailights looked like.