Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Summit Racing™ Pro BBC Big Nasty Stroker Edition LS Firing Order Hydraulic Retro-Fit Roller Cams SUM-1345
Part Number: SUM-1345
Summit Racing™ Pro BBC Big Nasty Stroker Edition LS Firing Order Hydraulic Retro-Fit Roller Cams
Pro BBC Big Nasty 1 Hyd. Retro-Roller "Stroker", LS Firing Order, 226/247 Dur. 106 LSA + 5 Adv. .550/.550 lift with 1.7, .582/.582 with 1.8
See More Specifications
|
Check the Fit
Estimated Ship Date: Today Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SUM-1345
Part Type:
Product Line:
Summit Racing Part Number:
SUM-1345
Item Number:
8819535
UPC:
190861385863
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Truck/Street/Strip
Camshaft Manufacturers Description:
Pro BBC Big Nasty 1 Hyd. Retro-Roller - Stroker Edition with LS Firing Order. Big Nasty Strokers all have the same overlap, so pick the power band you that makes you smile when you put the hammer down! Big Nasty 1 has the most low-end punch! Big-Tires or Heavy Vehicle? No problem.
Basic Operating RPM Range:
2,800-6,000
Intake Duration at 050 inch Lift:
226
Exhaust Duration at 050 inch Lift:
247
Duration at 050 inch Lift:
226 int./247 exh.
Advertised Intake Duration:
284
Advertised Exhaust Duration:
302
Advertised Duration:
284 int./302 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Valve Lift with Factory Rocker Arm Ratio:
0.550 int./0.550 exh.
Lobe Separation (degrees):
106
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Billet cams require a melonized or composite distributor gear and a bronze tip fuel pump push rod. Link-bar lifters required. Piston-to-valve clearance with factory pistons is usually fine. LS Firing order requires spark plug wire rerouting.
Summit Racing™ Pro BBC Big Nasty Stroker Edition LS Firing Order Hydraulic Retro-Fit Roller Cams
Summit Racing™ Pro BBC Big Nasty Stroker Edition cams are hydraulic roller retro-fit camshafts designed for older big block Chevys, using modern LS-series firing orders (1-8-7-2-6-5-4-3) to improve performance, reduce harmonics, and lower detonation risk. They feature 4-7/2-3 swap technology, aggressive lobe profiles, and are precision-ground on billet steel cores for high-RPM stability.
Key features and benefits:
* LS firing order: Reduces bearing load and improves combustion stability
* The "Big Nasty" provides strong mid-range and high-RPM power, with high lift suited to upgraded cylinder heads
* Retro-fit/hydraulic roller: Designed to install in older engines that used flat-tappet cams, featuring drop-in link bar lifters
* Billet core: High-quality hardened steel requiring a melonized or composite distributor gear
* Requirement: Requires a cam button to hold the cam in place
* Typical applications: These cams are often used in high-performance street and strip engines, particularly stroker combinations where the "Big Nasty" profile provides a noticeable idle and top-end power
Applications
Loading...
Loading...
Questions & Answers
Ask a Question
What type of question would you like to submit?
I have a Customer Service question
(order, shipping, returns, protection plans, etc.). Customer Service Question
(order, shipping, returns, protection plans, etc.). Customer Service Question
- OR -
I would like to ask other customers
a question about this Product. Product Related Question
a question about this Product. Product Related Question
Loading...
Reviews Write a Review
Some parts are not legal for use in California or other states with similar laws / regulations
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Email this page
