Spruell Motorsport, Inc
  Spruell Motorsport Alfa » Catalog » Alfa Romeo Parts » Engine - Cylinder Head » Cams, Springs, Followers » Camshaft Street Performance 11.0mm Lift My Account  |  Cart  |  Checkout   
Alfa Parts Categories
Alfa Romeo
  Cylinder Head
    Headwork/Weber Parts
    Cylinder Head OH Kits
    Valves, Guides, Seats
    Gaskets & Seals
    Cams, Springs, Followers
  Engines for sale
  Engine - Overhaul Kits
  Engine - Bottom End
  Gaskets, Seals & Locktabs
  Additional Alfa Product Information
Newest Products
Complete exploded Category listing
EnglishEnglish FrenchFrench SpanishSpanish
GermanGerman ItalianItalian PortuguesePortuguese
KoreanKorean JapaneseJapanese ArabicArabic GreekGreek TurkishTurkce
Recent Addition more
Carrillo Carr Bolts (SET OF 8)
Carrillo Carr Bolts (SET OF 8)
View Latest Additions
Camshaft STREET 10.5mm Lift High Performance

All of our street/performance cams are daily driver friendly with gentle opening ramps for good idle and transition with no lag or flat spots.  Our custom designs have progressively more top end.


NEW CAM  (No Exchange Necessary.)

Street High Performance upgrade for all Weber cars. Our #425 10.5mm cams are similar to the factory AUTODELTA 10.5mm 1750/2000 performance profile with the modified opening profile for  good lowend torque and idle.  Midrange and top end are superb with no flat spot. Duration 254 degrees @ .050" lift.  Base circle diameter 1.030," Standard 1.075.

THERE ARE TWO SETUP COMBINATIONS: Mid-range will be about the same with both setups. 

BASIC SETUP -- A pair of these SA425 cams. as intake and exhaust, will be strong up to 7000 RPM, with great top end for track events and still be docile enough for street. Our street performance 2.0 10.5:1 COMPRESSION test engine made 171 HP with very good low end torque and idle.

ULTIMATE STREET SETUPS: Enhance top end for those track days by using SA424. as intake with this #425 as exhaust. Sorry no dyno test results for increase.

PORTING:  Cleaning up the bowls from valve seats to back guides is quite sufficient for street performane cams without enlarging the runners.  Full porting is marginaly appropriate for street unless you plan to do track days.  Enlarging the ports enhances gain from midrange up and pays handsomely above 7000 rpm.

VALVES:  Enlarging the window into the chambers with our 1mm oversize valves is equally valuable and lets cams have full affect for both street performance and race.

HEADERS:  Cam and porting do make a big difference on their own, but these enhancements will only reach their full potential with our Spruell Motorsport free flow headers.


  • Locktab furnished with cam.
  • Bolt in with no clearance issues with any piston. 
  • Our cams have super durable lobes that are first hardwelded before precisioon regrinding.
  • To minimize lobe interference with follower bores with high lift performance cams, the base circle is undercut to 1.030."

All new and reground cams should be installed with new followers.  There is risk of damage with old followers. We can only guarantee satisfaction with Spruell Motorsport followers. 


  • Extra lock tabs $3.00 each (in addition to one furnished free).
  • Set of followers, add $145.00.

Shopping Cart more
0 items
Manufacturer Info
Other products
Notifications more
NotificationsNotify me of updates to Camshaft STREET 10.5mm Lift High Performance
Quick Find
Use keywords to search for Alfa Parts.
Advanced Search
*Login/cart trouble*
Shipping & Returns
Conditions of Use
Links of Interest

Copyright © 2007 - 2019 Spruell Motorsport, Inc
Powered by osCommerce (v2.2-MS2)
Spruell Motorsport Alfa is your source for performance parts for Alfa Romeo.
We specialize in Alfa Romeo 101, 105 and 115 drive train products for engine and gearbox.
We keep our prices as low as possible, but the current market is very volatile. Please note that there will be times
when we just cannot absorb an increase and the price we get back to you with will be higher than the catalog shows.
We reserve the right to correct errors in website data entry affecting pricing.
International orders under $100 are subject to a $20 USD handling fee and for PayPal, add 2.5% to total. (add 4.5% in USA.)
NOTE that WE MUST SEND Paypal payment requests from our PP account to your email address. Shipping will be added to the total shown on your invoice.