|
Register | Album Gallery | Thread Gallery | FAQ | Community | Calendar | Become a Paid Member | Today's Posts | Search |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
1970 Nova L78 Intake '569' - perfomance!!
I am finishing my 1970 L78 Nova, this was a former racecar (stock) and when I bought the car the '291' heads were in the trunk and it had aftermarket aluminum heads on the car. I am leaving them on and building kind of a day 2 street car. My question is I currently have the '569' intake on the car but my engine man says that I could probably gain about 50hp with an aftermarket intake. How well does this stock intake flow (they put it on the LS6 cars) and does a '163' from 69 flow better or should I go aftermarket (edelbrock, Holley, Weiand) and what aftermarket is best.
Thanks for all of the input...
__________________
70 Nova L34 black on black, auto. 70 Nova L78 Cranberry Red, 4spd. |
#2
|
|||
|
|||
Re: 1970 Nova L78 Intake '569' - perfomance!!
The 163 will be better than the 569, due to the higher carb flange of the 163 [ports are therefore better]...but even better than the 163 is the newly NHRA approved 359 intake, which is even taller at carb flange, and the diffusers on the port floors run side-to-side [towards valves] as opposed to front-to-back like on the 163/569.
But, a full boogie race intake [ie, taller] will definitely have the upper hand over the factory intakes...but the lower profile street/strip offerings [like the Stealth, etc] probably aren't gonna be heads & shoulders above the factory intakes. A lot of it depends on the look/feel you're going for, and ultimately what your performance aspirations are? I bet our resident induction guru Eric Jackson [Vintage Musclecar] could shed some valuable light on this subject as well... |
#3
|
|||
|
|||
Re: 1970 Nova L78 Intake '569' - perfomance!!
Rob, What was OEM application...........for the 359
and any knowledge of it fitting under stock 70 Camaro hood, with any form of decent air cleaner????
__________________
Chuck Sharin [email protected] Auburn,WA (30 miles South of Seattle) 70 Camaro R/S Z-28, L-78, R/S SS 69 Camaro COPO "recreation" |
#4
|
||||
|
||||
Re: 1970 Nova L78 Intake '569' - perfomance!!
If the 359 is taller than the 163 then it definetly ain't gonna work. 163 won't clear a stock 70 hood. Go L88 hood or choke your motor with the 569.
__________________
1969 Z28 1972 Corvette |
#5
|
|||
|
|||
Re: 1970 Nova L78 Intake '569' - perfomance!!
The 359 is an all new creature, I believe, straight out of GMPP...the NHRA allows it & the non-original 401 aluminum heads on the L78 & L72 combos. Why is beyond me...maybe as a concession to all the whacky FoMoCo combos.
|
#6
|
||||
|
||||
Re: 1970 Nova L78 Intake '569' - perfomance!!
That #359 intake manifold is made for GMPP by either Edelbrock or World Products. I think the #163 intake will fit because it came on '69 Novas and the VERY similar #069 came on '68 Novas. What changed on '70 Novas?
__________________
1962 Biscayne O-21669 MKIV/M-22 1962 Bel Air Sport Coupe 409/1,000 |
#7
|
||||
|
||||
Re: 1970 Nova L78 Intake '569' - perfomance!!
Definately do not use the stock low rise 70 intake if your looking for power.. I have talked to guys who said they have actually noticed a big difference in driveability by switching to the higher rise intakes.... If its originality your after and don't care about performance then use the stock, low rise...
Rich
__________________
"This is Sheriff Buford T. Justice, I'm in pursuit of a black Trans Am, he is all mine so stay out of the way" |
#8
|
|||
|
|||
Re: 1970 Nova L78 Intake '569' - perfomance!!
[ QUOTE ]
That #359 intake manifold is made for GMPP by either Edelbrock or World Products. I think the #163 intake will fit because it came on '69 Novas and the VERY similar #069 came on '68 Novas. What changed on '70 Novas? [/ QUOTE ] Interesting, didn't know it was outsourced, but doesn't surprise me. BTW, I think Darren was answering Chuck's question regarding his '70 Camaro...but you're correct aobu thte original poster's question, if it'll fit in a 68/69 Nova it'll fit in a '70. |
#9
|
|||
|
|||
Re: 1970 Nova L78 Intake '569' - perfomance!!
Nevermind, Rob treed me on this one!
__________________
Don't mistake education for intelligence. I worked with educated people. I socialize with intelligent people. |
#10
|
||||
|
||||
Re: 1970 Nova L78 Intake '569' - perfomance!!
I'll tell' ya....I've got one those #569 "pancake" intake manifolds that's orignal to my LS-6 and the funny thing is, if you turn it upside down, all the runners resemble a #163. I bought a magazine from the early '70's last weekend with an NHRA Stock Eliminator Chevelle that uses a #569. In the article, they stated they had compared it greatly to the Hi-rise, that the runners measure out exactly same, and performance was equal in their limited camshaft applications. For what it's worth.
__________________
1962 Biscayne O-21669 MKIV/M-22 1962 Bel Air Sport Coupe 409/1,000 |
|
|