was wondering if my l98 heads and cam and intake will fit my 327 vette motor from 65 ,it looks like it would ,not sure its my first vette and the bottomn end of my 327 is awsome power 425 with the old stuff i pulled heads off and cam and intake of 327 if this works i will do in winter if you can help me out it would be great


:burnout:

was wondering if my l98 heads and cam and intake will fit my 327 vette motor from 65 ,
Yes.
Heads bolt on but need to check chamber size.
L98 is 58cc ; most older heads 65-72cc. Might be too much compression.Obviously TPI intake fits heads.
Yours is a roller cam ; 327 is not.
Cam can be fitted with cam button BUT you need expensive aftermarket retro fit roller lifters because your block is not machined for stock rollers.
http://www.summitracing.com/parts/CCA-853-16/
Stock cam is very wimpy, not really worth using anyway. Can get better cam grinds to suit a TPI in your flat tappet lifter style. And flat tappet cams are cheap.

Read this post for ideas;
your proposed setup would be the same as a 85-86 Vette with flat tappet cam.

http://forums.corvetteforum.com/c4-tech-performance/2321086-looking-for-l98-ideas.html

Obviously if wanting to run TPI injection would need wiring harness from 86-89 TPI car ,Camaro or Vette and the computer.

thanks there ,the motor in 327 has all been redone forged pistons ,steel crank was made for circle track had 9000rpm cam i have street and race roller rockers push rods the other heads were guide plated and dbbl big blk springs ,now for frt end pullies can i use the same ones on my 1990 vette witch i want to put this motor in and keep the orginal computer or do i upgrade .I dont need air ,could get rid of pollution control stuff , if any one can help me out greatly appreciate it , also if any thing else i need and dont know please let me know thanks

What are your goals?

If it's a 9000 RPM screamer, that isn't going to happen w/the L98 heads.

If you're goal is to have a "TPI 327"...well your only going to end up w/an engine w/no top end (due to the TPI and less low end, due to the shorter stroke.

If you want the BEST advice, tell us what your goals are.


You could proably run the stock computer w/the L98 top end w/o any reprogramming...and probably get it very close to perfect by adjusting fuel pressure. i.e. the fuel requirement curves should be pretty similar for the two short blocks, assuming same cam.

With the use of the L98 top end, the stock '90 'Vette accessories will bolt up, in their stock locations.

You can get rid of the pollution control "stuff". Which parts do you want to get rid of, and why?

no no im done with the 9000 cam .i want to know if i can run intake and heads and cam or should i move up to new heads that work with my tpi i want to keep the computer going see ,cause if i have to carb it why did i buy it ,i want 450 horse see the 327 has that ,i just want that block in my car if i need new heads say it so ,i have all roller rockers now and original cammel bump no holes for pullies ,i just was askin thanks ,and you say pullies will work ,:burnout:

You can run intake heads and cam. It will all bolt on, but as vetteoz said, you'll need retrofit roller LIFTERS to run in that older style, flat tappet block...if you chose to run the 'Vettes ROLLER CAM.

Your "425 hp" 327 isn't going to make 450 horse with your proposed plan. With the TPI heads, intake and cam, and all emissions equipment removed (cat and smog pump) you MIGHT end up with 240 crank hp....if you're lucky.

HP is in the heads, cam and intake....NOT the bottom end (the "327" part), and the stock Corvette parts aren't going to get you there. If you want 450 hp out of a 327 CID motor, you're going to need AFR 190 heads or better, A mini ram or better, and a solid roller cam in the 240* range at .050"....or a flat tappet in the 250* range. You'd be better off with the 350 cid's longer stroke...and even better with a 400"+ motor. A 327" motor making 450 hp will be undrivable on the street.

,now for frt end pullies can i use the same ones on my 1990 vette .I dont need air ,
You need 2 holes in the drv side head to mount the accessory bracket
How to use with no air here

http://forums.corvetteforum.com/c4-tech-performance/2018171-those-who-have-deleted-the-ac-without-a-delete-pulley.html

Be aware the TPI in any form is a bottom end engine; impressive bottom end torque:thumbsup:
350 TPI makes little power over 4800, on a 327 it will run a little higher.
So you either work around having a lot of bottom end or ditch the TPI for a more top end setup (Hp).
Going to a bigger head is not going to help because the TPI is the restriction to all out power.

THANKS GUYS SO ITS EASIER TO STAY WITH L98 JUST CHANGE HEADS AND CAM , SO ANY GOOD IDEAS :thumbsup3: THEY WILL ALL BE APPRECIATED IM ALSO CHANGING REAR GEARS TO 353 STILL WANT TO GO ON HWY ,ALSO THINKING OF AUTO SHIFT CONTROL IN DASH MODEL ,ANY THING ON THAT OR HAS ANYONE USED IT ,ALSO CAN I USE THE SUPER COIL FRM ACCELL FROM HEI THEY BOLT ON TOP OF OLD DISTRIBUTOR ,ALSO HAVE NEW BOSS CHIP THAT BOLTS ON AIR SENSOR 300HP IT SAYS, I USE THE 100 NOW AND SEEMS TO WORK IM CHANGING IT IN A DAY OR TWO WILL LET YA KNOW IT MIGHT ONLY GIVE 20 HORSE NOW BUT MABEY THE NEW ONE WILL BE ATLEAST 50 OR MORE :duel: ANY EXTRA HORSE POWER ADD ONS SHOUT IT AT ME THANKS :burnout:

Spend your money on exhaust, cam, intake, and heads...in that order. That is where money spent will yield results. Coil won't do squat, "Boss Chip" won't do squat.

Gears are a good mod AFTER you do the above mods. Right now, on a stock TPI it will only add to SOTP, and not to real world performance.

what kind of cam and heads and intake should a guy use :lurk: :burnout:

WILL LT1 HEADS WORK WITH NEW CAM ?:rofl:

Sure...LT1 heads will "work with new cam". What cam? Why LT1 heads?
Putting LT1 heads on an L98 engine is not a practical swap at all. Not worth it...regardless of which cam you're thinking about.


what kind of cam and heads and intake should a guy use :lurk: :burnout:
It depends on:
What are your goals?...If you want the BEST advice, tell us what your goals are....You can get rid of the pollution control "stuff". Which parts do you want to get rid of, and why?

If you want us to try to help you, we need to know more about your goals and your budget.

WILL LT1 HEADS WORK WITH NEW CAM ?:rofl:
Late model LT-1 heads will not work on your L-98. The cooling system on the LT-1 is reverse cooling and in no way will they work on anything but a LT-1 block. Now early 70's LT-1 angle plug heads will fit your block but they cost big dollars and any new aftermarket head will out flow them at half the price.
David

Late model LT-1 heads will not work on your L-98.

It's been done, and it CAN work...but as I said in the post just above yours....it's not worth it.

It's been done, and it CAN work...but as I said in the post just above yours....it's not worth it.
Tom, What head & intake gaskets did you use? We looked at doing it years ago but with the head gaskets we tried there was always coolant passages that would leak or blocked off (No holes in the head castings) and the intakes we tried just physically wouldn't fit, Are local G.M Tech Rep said at the time there was no way to make them fit with out coolant leaks. If you have a part number for the gaskets and what type intake you used, I would greatly appreciate it. I have 9 sets of New LT-1 Heads I need to use on something.
Thanks David

I have never done it, so I don't have first hand info about that swap.

I THOUGHT that I had read a thread from a guy who did an LT1 head swap over on thirdgen, years ago. IIRC, his work involved a lot of welding/filling and drilling of coolant passages in the LT1 heads, to make them work properly w/the standard flow cooling/L98 block. I did a search over there to give you the link, but can't find that thread. As I recall, when I read the thread originally, I gave the guy props (in my head) for the DIY work he had done, but thought to my self that THAT project, would never be worth it.

Found it.

http://www.thirdgen.org/techboard/tpi/178262-completed-lt1-heads-gen1.html

Found it.

http://www.thirdgen.org/techboard/tpi/178262-completed-lt1-heads-gen1.html
Thanks Tom, Your right thats way to much work for the gain it will give.
David