383 Stroker - Not Enough Power! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Swbman · 07-13-2005, 04:42 PM

We just put a 383 Stroker in my son's 71 Cheyenne SWB. It has all the goodies, RV cam, Heads, Pistons, Headers, etc. And has been bored to .60 over. But like most kids, its not enough for him. We just had the heads redone with bigger valves, 1.94 to 2.02. Since the top end of the engine is apart, he wants to change it from hydraulic lifters to rollers. What do we need to change to make it a roller engine? Can we just replace the lifters and rocker arms with roller rockers and roller lifters? Or do we need to change cams and other parts too? Also how much more power could we expect to gain? It had about 400hp/425ft-lbs, before the head work.

Edit: Also does it make a difference between hydraulic rollers and solid rollers?
Or is there a hydraulic cam out there that could give it the same power gain as changing to rollers, without losing too much streetability?

724wdcopper · 07-13-2005, 04:55 PM

gonna need a new cam, different profiles for roller and flat tappet. and possibly cam button/thrust plate thing to keep it from walking forward. it would be easier to add some sort of power adder (Nitrous, Supercharger, blower, etc...)

how old is this kid? a 383 not enough power? sound like big block territory to me. maybe a 427 World Products small block, all aluminum, full roller...

Putter · 07-13-2005, 05:00 PM

Quote:

Originally Posted by Swbman

But like most kids, its not enough for him.

Might consider a smaller kid?!?!? (j/k)

speedracer · 07-13-2005, 05:19 PM

you never can have enough power!!

cdowns · 07-13-2005, 05:37 PM

rv cams aren't real power makers they're for moving rv vehicles down the road with economey// get all your specs laid out in front of you and call a couple of cam companies tell them what you've got and what you want they'll tell you what they've got to solve you problems// they have specialists just waiting for your phone call

mocwon · 07-13-2005, 05:44 PM

Quote:

Originally Posted by cdowns

rv cams aren't real power makers they're for moving rv vehicles down the road with economey// get all your specs laid out in front of you and call a couple of cam companies tell them what you've got and what you want they'll tell you what they've got to solve you problems// they have specialists just waiting for your phone call

Exactly what I did when I built my last car motor. Time well spent with the cam experts.

bigjimzlll · 07-13-2005, 06:00 PM

A roller cam is an expensive proposition. 300.00 springs..400.00 lifters..300.00 cam..most likely longer valves..different pushrods..a cam button..a distributor gear(bronze).
If he wants more power right now..then a cam like the comp xs268s10 will do it in spades. You can use the stock springs. It is a solid flat tappet. After initial breakin..check the lash when you change the oil. This cam will make 40HP more over an RV cam.

1STtimePRo'71 · 07-13-2005, 06:46 PM

I'll trade ya my stock 350 to start over on for that 383, thats plenty of power for me.

fastwillie 696969 · 07-13-2005, 07:06 PM

what tranny are you using if auto maybe a t/c is needed higher stall or what rear end gearing do you have these might be your problem

07-13-2005, 04:42 PM	#1
Swbman Senior Member Join Date: Mar 2004 Location: Tulsa,Oklahoma Posts: 606	383 Stroker - Not Enough Power! We just put a 383 Stroker in my son's 71 Cheyenne SWB. It has all the goodies, RV cam, Heads, Pistons, Headers, etc. And has been bored to .60 over. But like most kids, its not enough for him. We just had the heads redone with bigger valves, 1.94 to 2.02. Since the top end of the engine is apart, he wants to change it from hydraulic lifters to rollers. What do we need to change to make it a roller engine? Can we just replace the lifters and rocker arms with roller rockers and roller lifters? Or do we need to change cams and other parts too? Also how much more power could we expect to gain? It had about 400hp/425ft-lbs, before the head work. Edit: Also does it make a difference between hydraulic rollers and solid rollers? Or is there a hydraulic cam out there that could give it the same power gain as changing to rollers, without losing too much streetability? __________________ 1961 BUICK LESABRE 1968 CHEVELLE SS 396 1969 BUICK RIVIERA GS 1971 2 WHEEL DRIVE BLAZER 1971 4X4 BLAZER 1971 SHORTBED CHEYENNE FLEETSIDE 1971 SHORTBED 4X4 FLEETSIDE ** ...My Ebay Last edited by Swbman; 07-13-2005 at 05:38 PM.

07-13-2005, 05:19 PM	#4
speedracer Blank Join Date: May 2005 Location: Southington, CT Posts: 221	you never can have enough power!! __________________ 1969 lwb 4/6 drop 17x8-18x10 torque thrust II's 327-420hp 2004R 3.73 posi. 1977 Corvette 350-375hp 4speed, silver show car. 2002 S10 xtreme, work truck 2004.5 VW jetta GLI 1.8T 6speed, weekend warrior. 2013 Audi A3 TDI, the wife's car

07-13-2005, 05:37 PM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	rv cams aren't real power makers they're for moving rv vehicles down the road with economey// get all your specs laid out in front of you and call a couple of cam companies tell them what you've got and what you want they'll tell you what they've got to solve you problems// they have specialists just waiting for your phone call __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

07-13-2005, 06:00 PM	#7
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	A roller cam is an expensive proposition. 300.00 springs..400.00 lifters..300.00 cam..most likely longer valves..different pushrods..a cam button..a distributor gear(bronze). If he wants more power right now..then a cam like the comp xs268s10 will do it in spades. You can use the stock springs. It is a solid flat tappet. After initial breakin..check the lash when you change the oil. This cam will make 40HP more over an RV cam. __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

07-13-2005, 06:46 PM	#8
1STtimePRo'71 Registered User Join Date: Feb 2005 Location: Lake Crystal, MN Posts: 656	I'll trade ya my stock 350 to start over on for that 383, thats plenty of power for me. __________________ -Cory 1967 2 Wheel Chevy

07-13-2005, 04:55 PM	#2
724wdcopper graphic designer Join Date: May 2004 Location: Spokane, Washington Posts: 841	gonna need a new cam, different profiles for roller and flat tappet. and possibly cam button/thrust plate thing to keep it from walking forward. it would be easier to add some sort of power adder (Nitrous, Supercharger, blower, etc...) how old is this kid? a 383 not enough power? sound like big block territory to me. maybe a 427 World Products small block, all aluminum, full roller...

07-13-2005, 07:06 PM	#9
fastwillie 696969 ~Rest In Peace~ Join Date: May 2005 Location: CALIFORNIA NOR CAL Posts: 9,707	what tranny are you using if auto maybe a t/c is needed higher stall or what rear end gearing do you have these might be your problem __________________ is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex



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