intake and cam

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May 18, 2007 | 03:52 PM

smon

Thread Starter

Racer

Joined: Nov 2006

Posts: 495

Likes: 1

From: Lubbock TX

intake and cam

on a stock 75 l48 which intake would you guys choose
heres what i could find. i want to keep the same height with the stock carb.

http://store.summitracing.com/partdetail.asp?part=EDL%2D2701&autoview= sku

http://www.jegs.com/webapp/wcs/store...10002_18646_-1

any other suggestions welcome, but i dont want to spend a fortune.
on the cam- not sure what to look for, 75 is low on power-everywhere.
do i need to get other things with the new cam(rods,lifters,rocker arms)

http://store.summitracing.com/partde...2&autoview=sku

http://store.summitracing.com/partde...2&autoview=sku

thanks, sean

May 18, 2007 | 04:12 PM

King Lear

Veteran

Joined: Oct 2005

Posts: 1,284

Likes: 81

From: Nashville, TN

your better off with the spread bore 2101, if you go with the eps you will have to put a conversion spacer on and you will hit your hood.

May 18, 2007 | 04:17 PM

2000FRCZ19

Melting Slicks

Joined: Jul 2005

Posts: 2,060

Likes: 46

From: winter haven florida

St. Jude Donor '12

if it were me i would get a set of used vortec heads and the vortec performer intake, slide a new cam in it, upgrade the restrictive exhaust and call it a day. that shouldnt cost you too much and you will see a very nice increase in power.

May 18, 2007 | 04:18 PM

Scott Marzahl

Le Mans Master

Joined: Apr 2005

Posts: 6,349

Likes: 419

From: Seattle Area WA

Here is my 2 cents on this deal.

A change from the stock intake will not buy you much if anything except for the Bling factor. I'm not sure if the EPS manifold is available in the Q-Jet style or with the needed choke hookup that you require for your stock q-jet carb, if so, I think it is a bit taller that the RPM intake. If you go to the Edelbrock website directly they will have the height comparisons available.

The same goes for a cam swap with your low compression engine. You need a short duration cam with an early closing inlet valve to build cylinder pressure as is. If you search the archives, a very popular cam and best bang for your buck is the Summit 1102K or 1103K cam and lifter kit. The very best thing to increase your HP would be to invest in a set of heads with 64 to 67 CC heads. Look into the Dart Platinum/Iron Eagle heads or the Summit brand heads. Another option is to find a rebuilt or new set of GM Vortec heads which will also require a matching Vortec intake and valve covers.

May 18, 2007 | 04:29 PM

dgruenke

Drifting

Joined: Apr 2002

Posts: 1,716

Likes: 4

From: New Baden Illinois

If you are only doing the intake and cam, I would go with the Edelbrock 2101 to keep the stock height and the Summit 1102 cam.

May 18, 2007 | 06:00 PM

smon

Thread Starter

Racer

Joined: Nov 2006

Posts: 495

Likes: 1

From: Lubbock TX

where would i get these used vortec parts? im not looking to make my engine a really fast one that is hard on everyday driving. just want a little more power. i already put on hooker side pipes, so the exhaust is good.

so say i go with the edelbrck 2101 intake, theres nothing else i need to make this fit right?

and i go with the sum-1102 cam...dont i want the operating range to start at idle and end higher?

trying to keep this below $350 so i dont know if new heads will fit in the budget. if i changed the intake and cam with these right now, can i go back and install new heads without changing anything else?

May 18, 2007 | 08:27 PM

King Lear

Veteran

Joined: Oct 2005

Posts: 1,284

Likes: 81

From: Nashville, TN

for $350 a cam and intake is a about it.

May 18, 2007 | 09:34 PM

2000FRCZ19

Melting Slicks

Joined: Jul 2005

Posts: 2,060

Likes: 46

From: winter haven florida

St. Jude Donor '12

visit a few local machine shops, there is always someone there or hanging out there that knows where some good used stuff is sitting. price it all out before you buy. you might decide the heads are worth saving for a month or two more to get a really good performance increase with great everyday manners.